When he failed to properly arrest the same man who bribed him because he feared he would be discovered as a corrupt cop, Abbacchio had to see his partner in the police being fatally shot to save him. He become emotionless. Abbacchio is one of the more serious classmates after leaving his job. Out of the school, he is one of the most no-nonsense mates, taking objectives seriously and allowing very little to entertain him. Abbacchio never participates in the antics of his teammates.