aaron stringer , of the bakersfield , california , police department , reportedly said ` tickle ' as he ran his fingers along the soles of the feet of ramiro james villegas , a 22-year-old whom officers killed the same day .
a trainee police officer who was with him at the time told how stringer then pulled on the corpse 's toes , and pulled his head back and forth while discussing rigor mortis after the shooting on november 13 .
she said stringer volunteered them to head to the kern medical center in bakersfield to help identify the body .