Boston Man Arrested Months After Crash in Milton Killed Dad, Injured Son

Michael McGrath died and a child who was in his pickup truck needed surgery after the crash in March 2022, police said at the time; McGrath was taking his son to a hockey practice, prosecutors say

A man has been arrested in a car crash that left a man dead and a child seriously hurt in Milton, Massachusetts, last March, prosecutors said Thursday.

Manuel Alfonseca, 41, appeared in Quincy District Court Thursday afternoon on a hospital bed. He had a not guilty plea entered for charges including motor vehicle homicide by negligent operation and speeding.



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Alfonseca, of Dorchester, was going the wrong way at about 107 mph in a 35 mph zone in the March 8, 2022, crash on Blue Hill Avenue, according to a prosecutor with the Norfolk District Attorney's Office. He was left in critical condition after the collision, officials said at the time, while Michael McGrath, 56, died and a child who was in his pickup truck needed surgery after the crash.

A person was killed crash in Milton, Massachusetts.

McGrath's Chevrolet Silverado crashed with an Ifiniti Q50 sedan about 6:08 p.m. that night, police said at the time. The crash left wreckage strewn across Blue Hill Avenue.

McGrath was taking his son to hockey practice, prosecutors said Thursday. His son broke his leg and had spinal injuries, but has recovered significantly.

Alfonseca's had 19 prior incidents in Mass, including six driving-related offenses — one of which was a 2014 hit-and-run crash that left a teenager who was riding a scooter critically injured, the prosecutor said. He was held on $25,000 cash bail.

His lawyer said the crash left the man paralyzed on his left side and with his left leg amputated.

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