Mother Killed & Raped w/ a Hammer By Son 18

A South Texas  jury took less than an hour Wednesday in deciding the life sentence for 18-year-old Kevin Jazrael Davis, who pleaded guilty earlier in the week to killing Kimberly Hill.

Prosecutors say Davis in March struck his mother about 20 times with a hammer. He then sexually assaulted her corpse.

KZTV reports when police asked if it was his first time, Davis said, "I guess I lost my virginity to a dead corpse."

Davis called 911 the next day to say he had killed someone.

Jurors this week were shown a video of Davis' interview with detectives in which he acknowledged having violent fantasies toward women.

It has been reported that the teen told investigators he's sane and was aware of his actions in March.