Michigan police officer, 45, dies after a fallen tree he was cutting up in his yard with a chainsaw rolled back and crushed him Darrin Briggs was killed Monday night in the tree-cutting accident at his home in Jackson, which is about 78 miles west of Detroit The 45-year-old was a sergeant with the Tecumseh Police Department Police say he had been using a chainsaw to cut up a tree that had recently fallen at his home A section of the trunk managed to roll back towards him and crushed him First responders found his body trapped under the trunk when they arrived