WORCESTER, Mass. (AP) — A Fitchburg man who punched a pedestrian who complained he was driving too fast in 2012, a blow that led to the man's death, has pleaded guilty to manslaughter.

The Sentinel & Enterprise (http://bit.ly/1m3n6SU ) reports that Glenn Lowell Sr. was sentenced to five years' probation on Thursday after pleading guilty to charges related to the June 2012 death of Gregory Spyropoulos (spuh-ROPP'-uh-liss).

Authorities say the 50-year-old Spyropoulos was crossing a city street when he yelled at Lowell.

Police say Lowell stopped, got out and punched Spyropoulos, who fell to the ground and suffered a head injury. He died at a hospital three days later.

Lowell fled, but turned himself into police days later. Lowell claimed the other man threw the first punch.

Prosecutors say Spyropoulos' family approved of the deal.

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Information from: Sentinel & Enterprise (Fitchburg, Mass.), http://www.sentinelandenterprise.com