He says he doesn't want to live anymore becuase he is broke. There are no security check, inspections or pat down precedures for those who ride buses in China. Explosives or weapons can easily get on buses.

Google translate

Left hand pulled out a firecracker right hand to pick up the lighter, fire flashing between the carriage flew "crackling" blasted into a ...... 8 o'clock last night, when a 98 bus from east to west line up Po Temple Shahe Bridge near, the man suddenly claim to want to live! "in the car, and lit the firecrackers carry.

According to eyewitnesses Mr. Wong recalled that, around 8 o'clock last night, he and his friends, Mr. Lee into Rockwell Road building materials junctions on this 98 Road, preparing to go to Mannenba Law. A middle-aged man got into the car to follow the crowd, reaching the Treasure Temple Shahe Bridge near man edge yelled "want to live, we die!" Edge from the bag, took out a string of firecrackers and a lighter. saw flames flicker between men lit firecrackers, drivers kick Jicha. Mr. Wong said, after a few seconds, the bag was blown to pieces. Firecrackers finally blowing up, the passengers were frightened, have ran off the alarm, and the remaining five or six male passengers to stay in the car. "He continues to worry about a drastic action, we want to keep him until the police arrived." Mr. Wong said.

8:10 last night, into 110 patrol received the passengers rushed to the scene after the alarm, control of the men lit firecrackers Cai (37 years old). Currently, the police are still doing further investigation on the matter. Chengdu Chinese Commercial News reporter Ren Xiang