A Lancaster County judge has declared a mistrial in the assault case of an inmate accused of punching a prison guard in the face.
Forty-year-old Timothy Schrader does not deny punching the guard, but has maintained that he did so to protect himself after he learned of a plan by other inmates to stab him.
Schrader's attorney says Schrader knew if he hit a guard, he would be put in segregation away from other inmates.
But prosecutors argued that his choice to punch a guard - even to ensure his own safety - was still a crime.
Jurors began deliberating the case Friday morning, and by late afternoon came back deadlocked. The judge then declared a mistrial.