The owner of a Massachusetts company involved in a trench collapse that killed two men, including a Warren resident, has been indicted by a grand jury on numerous charges.

Kevin Otto, the owner of Atlantic Drain Services Inc. in Roslindale, Ma., was charged along with the company at large with two counts of manslaughter, six counts of concealing records and one count of misleading investigators.

Robert “Robby” Higgins, 47, of Warren, died late last October along with another worker, when a trench in which they were working in downtown Boston flooded. In a statement, Suffolk County District attorney Dan Conley said the men were excavating a trench about 14 feet below grade when it gave way, causing a fire hydrant to collapse into the ditch. The trench rapidly filled with water, trapping the men. Several other men were able to make it out safely.

“As with all unnatural fatalities within the City of Boston, experienced prosecutors from my office responded to the scene and led the death investigation that followed, overseen by the chief of our Homicide Unit and assisted by Boston Police homicide detectives," Mr. Conley wrote in a statement.

A lifelong resident of Warren, Mr. Higgins loved sports, especially football, which he played for the Warren High School team from 1983 to 1987 as #20. He enjoyed fishing and clamming, giving a helping hand to his neighbors on Barden Lane, and his family wrote in his obituary that he was always there with a smile, kind words, and the best hugs. He helped local kids at the Kids Federation with wrestling.