|
Texas Tower Shooting
On August 1, 1966, after stabbing his mother and his wife to death the previous night, Charles Whitman, a Marine veteran, took rifles and other weapons to the observation deck atop the Main Building tower at the University of Texas at Austin, and then opened fire indiscriminately on people on the surrounding campus and streets. Over the next 96 minutes he shot and killed 15 people, including an unborn child, and injured 31 other people. The incident ended when two policemen and a civilian reached Whitman and fatally shot him. At the time, the attack was the deadliest mass shooting by a lone gunman in U.S. history, being surpassed 18 years later by the San Ysidro McDonald's massacre. It has been suggested that Whitman's violent impulses, with which he had been struggling for several years, were caused by a tumor found in the white matter above his amygdala upon autopsy. Perpetrator Charles Whitman, aged 25, was studying architectural engineering. In 1961, Whitman was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mass Shootings In The United States
Mass shootings are incidents involving multiple victims of Gun violence in the United States, firearm-related violence. Definitions vary, with no single, broadly accepted definition. One definition is an act of public firearm violence—excluding gang killings, domestic violence, or terrorist acts sponsored by an organization—in which a shooter kills at least four victims. Using this definition, one study found that nearly one-third of the world's public mass shootings between 1966 and 2012 (90 of 292 incidents) occurred in the United States. Using a similar definition, ''The Washington Post'' records 163 mass shootings in the United States between 1967 and June 2019. Mother Jones (magazine), ''Mother Jones'' records 133 mass shootings between 1982 and July 2022. ''The Associated Press'' records 59 mass shootings between 2006 and August 2022. ''The New York Times'' records 90 mass shootings between 1966 and 2012. ''The Violence Project'' records 185 mass shootings from 1966 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gauge (bore Diameter)
The gauge (or commonly bore in British English) of a firearm is a unit of measurement used to express the inner diameter (bore diameter) of the barrel. Gauge is determined from the weight of a solid sphere of lead that will fit the bore of the firearm and is expressed as the multiplicative inverse of the sphere's weight as a fraction of a pound, e.g., a one-twelfth pound lead ball fits a 12-gauge bore. Thus there are twelve 12-gauge balls per pound, etc. The term is related to the measurement of cannon, which were also measured by the weight of their iron round shot; an 8-pounder would fire an 8 lb (3.6 kg) ball. Gauge is commonly used today in reference to shotguns, though historically it was also used in large double rifles, which were made in sizes up to 2 bore during their heyday in the 1880s, being originally loaded with black powder cartridges. These very large rifles, called "elephant guns", were intended for use primarily in Africa and Asia for hunting lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Matter
White matter refers to areas of the central nervous system (CNS) that are mainly made up of myelinated axons, also called tracts. Long thought to be passive tissue, white matter affects learning and brain functions, modulating the distribution of action potentials, acting as a relay and coordinating communication between different brain regions. White matter is named for its relatively light appearance resulting from the lipid content of myelin. However, the tissue of the freshly cut brain appears pinkish-white to the naked eye because myelin is composed largely of lipid tissue veined with capillaries. Its white color in prepared specimens is due to its usual preservation in formaldehyde. Structure White matter White matter is composed of bundles, which connect various grey matter areas (the locations of nerve cell bodies) of the brain to each other, and carry nerve impulses between neurons. Myelin acts as an insulator, which allows electrical signals to jump, rather than c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Ysidro McDonald's Massacre
The San Ysidro McDonald's massacre was an act of mass murder which occurred at a McDonald's restaurant in the San Ysidro neighborhood of San Diego, California, on July 18, 1984. The perpetrator, 41-year-old James Huberty, fatally shot 21 people and wounded 19 others before being killed by a police sniper approximately 77 minutes after he had first opened fire. At the time, the massacre was the deadliest mass shooting by a lone gunman in U.S. history, being surpassed seven years later by the Luby's shooting. Chain of events Prior to incident On July 15, 1984, James Huberty commented to his wife, Etna, that he suspected he had a mental health problem. Two days later, on the morning of July 17, he called a San Diego mental health clinic, requesting an appointment. Leaving his contact details with the receptionist, Huberty was assured the clinic would return his call within hours. According to his wife, he sat quietly beside the telephone for several hours, awaiting the return ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mass Shootings In The United States
Mass shootings are incidents involving multiple victims of Gun violence in the United States, firearm-related violence. Definitions vary, with no single, broadly accepted definition. One definition is an act of public firearm violence—excluding gang killings, domestic violence, or terrorist acts sponsored by an organization—in which a shooter kills at least four victims. Using this definition, one study found that nearly one-third of the world's public mass shootings between 1966 and 2012 (90 of 292 incidents) occurred in the United States. Using a similar definition, ''The Washington Post'' records 163 mass shootings in the United States between 1967 and June 2019. Mother Jones (magazine), ''Mother Jones'' records 133 mass shootings between 1982 and July 2022. ''The Associated Press'' records 59 mass shootings between 2006 and August 2022. ''The New York Times'' records 90 mass shootings between 1966 and 2012. ''The Violence Project'' records 185 mass shootings from 1966 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Marine Corps
The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, artillery, aerial, and special operations forces. The U.S. Marine Corps is one of the eight uniformed services of the United States. The Marine Corps has been part of the U.S. Department of the Navy since 30 June 1834 with its sister service, the United States Navy. The USMC operates installations on land and aboard sea-going amphibious warfare ships around the world. Additionally, several of the Marines' tactical aviation squadrons, primarily Marine Fighter Attack squadrons, are also embedded in Navy carrier air wings and operate from the aircraft carriers. The history of the Marine Corps began when two battalions of Continental Marines were formed on 10 November 1775 in Philadelphia as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brain Tumor
A brain tumor occurs when abnormal cells form within the brain. There are two main types of tumors: malignant tumors and benign (non-cancerous) tumors. These can be further classified as primary tumors, which start within the brain, and secondary tumors, which most commonly have spread from tumors located outside the brain, known as brain metastasis tumors. All types of brain tumors may produce symptoms that vary depending on the size of the tumor and the part of the brain that is involved. Where symptoms exist, they may include headaches, seizures, problems with vision, vomiting and mental changes. Other symptoms may include difficulty walking, speaking, with sensations, or unconsciousness. The cause of most brain tumors is unknown. Uncommon risk factors include exposure to vinyl chloride, Epstein–Barr virus, ionizing radiation, and inherited syndromes such as neurofibromatosis, tuberous sclerosis, and von Hippel-Lindau Disease. Studies on mobile phone exposure hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mental Illness
A mental disorder, also referred to as a mental illness or psychiatric disorder, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. Such features may be persistent, relapsing and remitting, or occur as single episodes. Many disorders have been described, with signs and symptoms that vary widely between specific disorders. Such disorders may be diagnosed by a mental health professional, usually a clinical psychologist or psychiatrist. The causes of mental disorders are often unclear. Theories may incorporate findings from a range of fields. Mental disorders are usually defined by a combination of how a person behaves, feels, perceives, or thinks. This may be associated with particular regions or functions of the brain, often in a social context. A mental disorder is one aspect of mental health. Cultural and religious beliefs, as well as social norms, should be taken into account when making a diagnosis. Services are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homicidal Ideation
Homicidal ideation is a common medical term for thoughts about homicide. There is a range of homicidal thoughts which spans from vague ideas of revenge to detailed and fully formulated plans without the act itself. Most people who have homicidal ideation do not commit homicide. 50–91% of people surveyed on university grounds in various places in the United States admit to having had a homicidal fantasy. Homicidal ideation is common, accounting for 10–17% of patient presentations to psychiatric facilities in the United States. Homicidal ideation is not a disease itself, but may result from other illnesses such as delirium and psychosis. Psychosis, which accounts for 89% of admissions with homicidal ideation in one US study, includes substance-induced psychosis (e.g. amphetamine psychosis) and the psychoses related to schizophreniform disorder and schizophrenia. Delirium is often drug induced or secondary to general medical illness(es). It may arise in association with persona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
25 ACP
The .25 ACP (Automatic Colt Pistol) (6.35×16mmSR) is a semi-rimmed, straight-walled centerfire pistol cartridge introduced by John Browning in 1905 alongside the Fabrique Nationale M1905 pistol. Design The cartridge is of semi-rimmed design meaning that the rim protrudes slightly beyond the diameter of the base of the cartridge so the cartridge can headspace on the rim.*Wilson, R. K. ''Textbook of Automatic Pistols''. Plantersville, SC: Small Arms Technical Publishing Company, 1943. p. 258. . Though the .25 ACP was designed for semi-automatic pistols, various .25 ACP revolvers were produced in the early twentieth century by Belgian, French, and German gunmakers such as Adolph Frank and Decker. In the late twentieth century, Bowen Classic Arms produced a custom Smith & Wesson revolver in .25 ACP.Bowen, Hamilton. ''The Custom Revolver''. Privately printed, 2001. . Performance The use of the .25 ACP allows for a very compact lightweight gun, usually pocket pistols, but the ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galesi-Brescia
Galesi Arms was an Italian gun manufacturer formally named ''Industria Armi Galesi'' which was founded in 1910. It was based in Collebeato, on the northern outskirts of Brescia. History The company was founded by Galesi Giuseppe Nicola, and was initially named Galesi F.lli, (Galesi Brothers), though it later became known as Armi Galesi (AG) or Industria Armi Galesi (IAG). The company manufactured patented automatic pistols, rifles and revolvers, but was most well-known for their small semi-automatics. They began to produce their pistols in 1914, following Italy's entry into World War I. Galesi Arms moved production from Trento to Collebeato, located in Brescia, beginning in the year 1921. In 1924, it had 25 workmen and a hydro-electric machine that had the power of 25 to 30 horses. The majority of their pistols were manufactured from 1960 to 1970, and the company went out of business in 1991, though similar pistols were produced by the company "Rigarmi", which was opened by Guerrino ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9×19mm Parabellum
The 9×19mm Parabellum (also known as 9mm Parabellum or 9mm Luger or simply 9mm) is a rimless, tapered firearms cartridge. Originally designed by Austrian firearm designer Georg Luger in 1901, it is widely considered the most popular handgun and submachine gun cartridge due to its low cost and extensive availability. It is a standard cartridge for NATO forces as well as in many non-NATO countries. Since the cartridge was designed for the Luger semi-automatic pistol, it has been given the designation of 9mm Luger by the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) and the Commission internationale permanente pour l'épreuve des armes à feu portatives (CIP). A 2007 US survey concluded that "about 60 percent of the firearms in use by police are 9mm arabellum and credited 9×19mm Parabellum pistol sales with making semiautomatic pistols more popular than revolvers.Adler, Jerry, et al. "Story of a Gun." ''Newsweek'' 149.18 (30 April 2007): 36–39. MasterFILE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Texas Tower Shooting")
.svg "Click for more on -> Mass Shootings In The United States")
