It’s been five months since a Massachusetts State Police trooper died after suffering brutal injuries during a boxing training exercise, and a group of lawmakers want to know where things stand with the investigation into his death.

Recruit Enrique Delgado-Garcia, 25, died Sept. 13 after suffering a “medical crisis” during a boxing “training exercise” at the New Braintree Academy the day before, according to the MSP announcement.

The investigation would have normally gone to the Worcester District Attorney’s office, but DA Joseph Early Jr. recused himself as Delgado-Garcia had worked in the office as a victim witness advocate for a year and a half before joining the MSP.

Massachusetts Attorney General Andrea Campbell appointed former prosecutor David Meier, currently a partner at Todd & Weld LLP, to investigate the death instead.

“All the undersigned greatly appreciate that investigations take time and that what information can be shared at this stage in the process will be limited. In the months since the death of Trooper Delgado-Garcia at the State Police Academy critical questions have remained unresolved,” Massachusetts state Senators Michael Moore, Robyn Kennedy and Peter Durant, who all represent Worcester County, wrote in a joint letter to Campbell this week.

“At the same time, Trooper Delgado-Garcia’s family has patiently waited for answers to some of the hardest questions they will ever have to ask. Any information that you may be able to share related to the status of the investigation, the estimated duration of the investigation, and any preliminary factual findings would be deeply appreciated,” the letter continued.

Delgado-Garcia was just weeks away from graduation when the tragedy occurred. He received his trooper badge and the oath of office from his UMass Memorial Medical Center hospital bed in the final hours of his life, according to the letter. His presence was felt at the MSP graduation ceremony the next month.

The MSP announcement on his death was very basic, but subsequent statements from concerned parties shed greater light on the extent of his injuries.

The American Civil Liberties Union called for a federal investigation into Delgado-Garcia’s death and in their statement described “incredibly severe” injuries like “damage to his brain, a broken neck, and missing teeth. It is hard to imagine how such injuries could have been inflicted in a closely supervised training environment.”

A week later, after Meier’s announcement as investigator, the Latino Law Enforcement Group of Boston wrote an open letter calling for the investigation to be “thorough and transparent,” highlighting that Delgado-Garcia was “by all accounts was a healthy 25 year old man.”

The senators shared concerns over how the death could have occurred.

“These looming questions, along with allegations of hazing and harassment, remain unanswered almost five months later,” the senators wrote in a statement to media accompanying the letter.

This is a developing story.

Enrique Delgado-Garcia’s family provided these images of the Massachusetts State Trooper trainee. (Courtesy / Worcester County DA’s office)