Joe JacksonThe bodyguard who called 911 the day Michael Jackson died was fired late last week by the singer's family. Now, we know why. A close friend of the Jacksons tells PopEater exclusively that Alberto Alvarez was let go Friday after they discovered he had a criminal record and no longer felt he should be near the family's large brood of children.

Alvarez had worked at the Jackson family compound since the legendary singer's death last June, but recently "there was something off about him."

As the AP first reported, Alvarez told the LAPD two months after Jackson's death that Dr. Conrad Murray stopped CPR on the singer in order to hide vials of Propofol, the powerful sedative. He also claimed Murray instructed him to help pick fallen drug bottles off the floor before medics arrived. Immediately after Jackson's death, Alvarez said nothing of the sort to investigators.