Unfortunately for Darsp, a man carrying a real gun was in the store and shot him after he exited.
My San Antonio reports:
Darsp apparently grabbed a box of K2, which mimics the effects of marijuana, put it in a black satchel and walked out. But the customer followed him outside and confronted him in front of the building, Bernal said.
“The robber still wanted the guy to believe he had a gun but ended up dropping it,” he said. “And as he was going to reach for it, the licensed handgun owner shot him in his left upper buttock.”