ROMEO, Mich. -

The man charged with causing 2-year-old Damian Sutton's death will undergo a competency evaluation.

Ronald Dimambro, 26, is charged with murder and child abuse charges.

At a hearing Thursday, the judge signed the order for the evaluation and set the next pre-exam conference for Oct. 21.

He is accused of beating and shaking young Damian to death last month. Damian died Aug. 27 at Children's Hospital after spending several days in a medically-induced coma.

Dimambro, the boyfriend of the boy's mother, was caring for the toddler at the time he was injured.

Macomb County Sheriff Tony Wickersham says the 26-year-old man called 911 to report Sutton was having an asthma attack. Wickersham said Dimambro later admitted he had shaken the child.

LISTEN: Washington Township 911 call

Dimambro has a criminal history that includes domestic violence and impaired driving.

"It's clearly one of the saddest things I've ever seen," said Macomb County Prosecutor Eric Smith.