Police organizations mourn Billerica sergeant killed at construction site [Video]

Nearly 50 law enforcement agencies, fire departments and other public services organizations from around Massachusetts and the country have taken to social media to mourn the death of a Billerica police sergeant who was killed by an excavator at a construction site Friday afternoon.

Authorities’ initial investigation indicates that Sgt. Ian Taylor, 49, was working a paid detail at a road construction site in Billerica when he was hit shortly before 2 p.m., the Middlesex County District Attorney’s Office said previously. He was taken to a local hospital where he later died.

Everyone involved in the incident has been cooperative with authorities’ investigation, and more information about the incident will be released in coming weeks, Middlesex District Attorney Marian Ryan said previously. The Occupational Safety and Health Administration (OSHA) is investigating the incident, as are state and local police.

The district attorney’s office called Taylor’s death “a tremendous loss for those who loved him and his entire community” in a social media post on Friday.

“Ian was first …