KRASNODAR, September 16 (RIA Novosti) – A 36-year-old Russian woman has been detained on suspicion of murdering a 21-year-old woman for dancing with her boyfriend at a birthday party, investigators said Monday. 
 
 The suspect became jealous when she saw her boyfriend dancing with a 21-year-old guest at a birthday party in a local cafe, a statement on the Krasnodar Territory investigative committee site said. 
 
 She then “took a knife, approached the dancing woman and stabbed her twice,” the statement said. 
 
 The 21-year-old was taken to hospital but later died from the injuries sustained, the statement said. 
 
 If found guilty, the suspect faces up to 15 years in prison. ||||| ROSTOV-ON-DON, September 16 (RIA Novosti) – A “passionate argument” about 18th-century Enlightenment philosopher Immanuel Kant, renowned for his treatises on ethics, “deteriorated into a fistfight” between two men waiting in line for beer during an outdoor City Day event in the southern Russian metropolis of Rostov-on-Don, police said Monday. 
 
 The argument ended when one of the debaters pulled out an air gun and shot the other in the head, local police said in a statement. The shooter then fled the scene but was later detained, police said. The other man’s wound was not critical, but he was hospitalized, the statement said, without disclosing any names. Local media said the men were in their late 20s. 
 
 The attacker now faces up to a decade in prison for intentional infliction of serious bodily harm, police said. That sentence would give him time to more thoroughly study the works of Kant, who contemplated a universal law of morality. ||||| An argument in southern Russia over philosopher Immanuel Kant, the author of "Critique of Pure Reason," devolved into pure mayhem when one debater shot the other. 
 
 The state news agency RIA Novosti on Monday cited police in the city of Rostov-on-Don as saying the argument took place in a small store and deteriorated into a fistfight. One participant pulled out a small nonlethal pistol and fired repeatedly. 
 
 The victim was hospitalized with injuries that were not life-threatening. The weapon fired plastic bullets or blanks. Neither person was identified. 
 
 It was not clear which of Kant's ideas may have triggered the violence.
– A spate of odd news today concerning attacks in Russia: one on a dance floor, three in a cemetery, and another over a philosopher. Two 20-something men in line for beers at a festival in southern Russia, got in a heated dispute about 18th-century philosopher Immanuel Kant. The feud "deteriorated into a fistfight," police said today, and one of the men eventually shot the other in the head with an air gun—multiple times, the AP notes. The victim survived; the attacker could be in prison for a decade, RIA Novosti adds. Police arrested a 36-year-old woman after she allegedly stabbed another woman at a birthday party; the 21-year-old victim was apparently dancing with the attacker's boyfriend, RIA Novosti reports. The alleged attacker "took a knife, approached the dancing woman, and stabbed her twice," investigators say. The victim died in the hospital. A guilty verdict could mean 15 years in prison for the suspect. A man has been convicted of killing his mother, brother, and father in a cemetery. They were reportedly living in the graveyard after he evicted them, and when his mother accused him of the eviction, he hit her. His brother stepped in, and the man ended up stabbing both of them—and killing his father, who'd seen the attack. The suspect has been sentenced to life in prison, RIA Novosti reports.