Bodycam footage shows Texas man Kenneth Knotts saying, "I can't breathe," before dying

New bodycam footage shows Texas man Kenneth Knotts saying, "I can't breathe," before dying in police custody at UT Southwestern Medical Center.

Knotts was taken for a mental health evaluation after a traffic stop.

When he got to the hospital, Knotts appeared to be suffering from a mental breakdown and wouldn't comply with the police.

Knotts was taken to the hospital after his tire blew out on the freeway. An incident report says he was acting "erratically, combatively, and spitting" when police approached.

After wrestling with him and putting him on his stomach in the hospital, Knotts stopped breathing.

"No pulse! No pulse!" a staffer yelled.

The medical examiner report allegedly ruled Knotts died of cardiac arrest after being put in a "semi-prone position," a homicide.

In November, a Dallas County grand jury declined to indict anyone involved with the homicide.