Liu Xiaohui was arrested at 10:50 p.m. Wednesday night, about 12 hours after the morning attack, Anfu County police said in a statement. He had run away and gone into hiding, the statement said. Police did not release any information about the victims’ identities or ages. China’s Global Times newspaper reported that at least one victim was a child and that the attacker was believed to be armed with a knife. China has beefed up security at schools after a series of deadly attacks in recent years largely attributed to people with a grudge against society or mental illness. China does not allow private gun ownership, so most such attacks are carried out with knives, improvised explosive devices or petrol bombs. About 100 children and adults have been killed and hundreds injured in the past decade in seemingly uncoordinated “lone wolf” attacks, in which the motive was unclear. The mostly male perpetrators were either killed, took their own lives or were tried and executed. Chinese police have arrested a 47-year-old man on suspicion of an attack that killed three people and injured six others at a kindergarten.Weibo About 100 children and adults have been killed and hundreds injured in the past decade in apparently uncoordinated “lone wolf” attacks.Weibo Crowd at scene of deadly attack in a kindergarten in Jiangxi province.Weibo Acts of violence against China’s youth are particularly resonant because of the country’s chronically low birthrate, in part due to decades of population control policies.