He lives, but the action doesn't start till about 1:30.

LANCASTER, Texas - A man believed to be responsible for shooting and killing two people in San Antonio barricaded himself for about five hours outside a gas station in Lancaster.

San Antonio police said 31-year-old Alonzo Mendoza is wanted for fatally shooting two employees at a Dollar General store Wednesday morning.

Dallas County constables said he was spotted weaving in and out of traffic on Interstate 35 in Lancaster just before 1 p.m. Wednesday.

Constables stopped him at a Shell gas station on Pleasant Run Road. When they approached the car, he reportedly had a gun pointed at his head in one hand and a cell phone in the other.

Mendoza threatened to commit suicide, constables said.

Sheriff SWAT, DeSoto and Lancaster police officers joined in the standoff. Video from SKY 4 showed the gas station surrounded by dozens of cruisers.

It finally ended just before 6 p.m. when officers tossed tear gas into the suspect's vehicle. He surrended and was taken into custody.