An Altoona man was sentenced yesterday to serve 10.5-21 years in prison after strangling and assaulting a former girlfriend. 39 year old Justin Seilhamer, who was convicted in January, reportedly expressed remorse in court and blamed his behavior on substance abuse. In December of 2022, Seilhamer strangled and assaulted the woman in the entry area of the Sheetz Store on 17th Street in Altoona. In court on Tuesday, the ex-girlfriend reportedly said she still struggles emotionally.