Audio: 911 calls released in death of inmate Irvo Otieno

Three of the 10 people facing murder charges in the death last week of 28-year-old Irvo Otieno at a Virginia mental health facility were security guards at the hospital who watched and then participated in the fatal smothering, the prosecutor told CNN Friday. Audio calls to 911 from the hospital deputy workers were released just this morning, along with the surveillance footage of the final moments leading up to the death of the inmate while in police custody.