Shanghai: A Chinese man who feared that the world was coming to an end screamed "we will die together" before attacking his father and nephew here.
Xia Hongbiao, 48, then set fire to their home, the Shanghai Daily reported Wednesday.
Xia allegedly attacked his father, who is in his 70s, and his 18-year-old nephew.
"It was horrible. I saw big holes in the heads of both the old man and young man, and they were bleeding profusely," a neighbour said.
Xia once bought 150 kg of rice and boxes of food and drinks and warned neighbours to prepare for the "coming disaster to mankind".