A Harrisburg man is going to prison for two domestic violence incidents. Michael Heffelfinger was sentenced to four-to-ten years behind bars yesterday after pleading guilty to assault and criminal trespass. Prosecutors say Heffelfinger punched the victim repeatedly during an argument in December and then choked her into unconsciousness. Two days later, Heffelfinger went back, kicked in the door, threatened her and stole her cell phone.