So I read up on this case.
The man Collins hit has been harassing him, his wife, and his children for MONTHS.
Here is the part where the justice system isn't just for everyone. After Collins hit him for assaulting his wife and kids (justifiable), the guy didn't die on the spot.
He died weeks later because he refused to go to the hospital to get checked out. The Prosecutors STILL decided to charge him with murder. Collins being fearful a jury would send him to jail for life for protecting his family took a plea deal instead.