A Mexican hitman has been executed for murdering a woman who failed to pay "tax" on her drug sales.
Manuel Vasquez, 46, was killed by lethal injection for beating and strangling 51-year-old Juanita Ybarra in San Antonio in 1998.
His sister and a friend cried as they watched his death through a window at the prison in Huntsville.
Ybarra's sister also witnessed the execution and Vasquez was pronounced dead at 6:32pm CDT, 17 minutes after he was injected.