An eastern Nebraska mother and the man she trusted to watch her 6-month-old son are both facing charges because doctors found severe burns and old bruises on the boy.

Sarpy County prosecutors charged 29-year-old David Coleman with felony child abuse Wednesday because he was watching the boy when he was burned earlier this week.

Coleman is a registered sex offender who was convicted of first-degree sexual assault of a child in 2004. He is being held in lieu of $500,000 bail.

Lt. Steve Grabowski says Coleman told the mother the boy was burned by a heating pad. The baby remains hospitalized with third-degree burns, a broken leg and bruises.

The boy's mother, 26-year-old Starr Manza, was ticketed on suspicion of child neglect.