LOWELL -- A Lowell man has been arrested and charged with leaving the scene of death in connection with a hit-and-run crash that killed an 86-year-old pedestrian last week, according to Middlesex District Attorney Marian Ryan and Lowell Police Superintendent William Taylor.

Hector Caustrita, 21, was arrested on Thursday without incident at the Lowell Police Department. He has been charged with leaving the scene of death.

Caustrita was to be arraigned Thursday afternoon in Lowell District Court.

At about 11 p.m. on June 4, Lowell police responded to the intersection of Westford and Windsor streets. When they arrived, Elmer Mortensen, 86, of Lowell, was pronounced dead at the scene.

Through their investigation, authorities allegedly discovered Mortensen was crossing the roadway at that intersection when he was struck by a blue 2003 Volkswagen GTI traveling west on Westford Street.

It is alleged that Caustrita stopped and exited his vehicle, and approached Mortensen who was unresponsive. He then allegedly returned to his car, and drove off down Westford Street, toward Chelmsford.

Police located the car, which is registered in Caustrita's name, at an apartment complex about three miles from the scene of the crash. There was significant damage to the windshield, according to authorities.

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