The County District Attorney, where recruit Enrique Delgado-Garcia once worked, has declined to handle the investigation.

Citing a conflict of interest, Worcester District Attorney Joseph Early Jr. said Monday his office will not handle the investigation into the death of a Massachusetts State Police recruit injured during a training exercise last week, as the young man previously worked for the DA’s office.

Sources say he was in the rink with someone else when he stumbled onto the mat but stood back up the fight was allowed to continue. He then collapsed following a blow to the head.

The Massachusetts Department of Labor Standards on Thursday confirmed it is weighing whether to investigate the death of Enrique Delgado-Garcia at the Massachusetts State Police training facility in New Braintree.