A coroner says toxic levels of cocaine, PCP and Ecstasy caused the accidental death of a robbery suspect after Dallas police shocked him with a Taser.
The Dallas Morning News, for its Wednesday editions, reported a Taser was used on Lockett at least six time in an attempt to subdue the fleeing suspect while he acted erratically.
Officers handcuffed Lockett, then took him to an ambulance. The medical examiner's report says Lockett went into respiratory arrest about 21 minutes after the last use of the Taser.
Lockett had previous convictions for drug manufacturing and delivery.