Veterinarian Clark Kelly died from a heart attack during a break-in at his Rolando clinic in 2022. Patrick O'Brien pleaded guilty to involuntary manslaughter, and Dr. Kelly's family thought that would be the end of it. But they say the justice system has let them down time and time again. Karen Kelly didn't even know her dad's killer was out of jail until after he got arrested again. “I don't have any answers as to why this happened, but all I know is he was literally — the door was open and he walked out,” she said. “It’s scary.” MORE: https://www.cbs8.com/article/news/local/man-responsible-for-veterinarians-death-back-in-jail-again/509-c67aa120-f217-4652-81b3-c089e4f163fb