Michael Joseph Henry, a 31-year-old Philadelphia man, entered a guilty plea Tuesday in Montgomery County Court to selling the gun that killed Plymouth Township police officer, Brad Fox. The weapon was used by Andrew Charles Thomas to kill Officer Fox during a traffic stop that quickly turned to a chase and stand-off on September 13th. Thomas took his own life after shooting Officer fox. Henry apologized to the Fox family for his actions. He’s being held on 1-million dollars bail in Montgomery County Prison. Henry faces a potential term of 42 to 84 years in prison when he’s sentenced.