Jupiter, FL (WTXL/ABC) -- Newly released surveillance video from Duffy's Sports Grill in Jupiter released Friday by the Martin County Sheriff's Office shows the suspect hours before the brutal murder.
It's at that restaurant where investigators say 19-year-old Austin Harrouff had dinner with relatives and stormed out following an argument with his father.
Hours later, the Martin County Sheriff's Office said Harrouff attacked and killed John and Michelle Stevens as the couple sat in their garage of their home.
Deputies found Harrouff biting the face of Stevens. A group of deputies and a K-9 had to forcefully pull Harrouff off of Stevens when their tasers proved ineffective. Harrouff is in the hospital, heavily sedated.
Friends and family gathered in Fort Lauderdale Friday to remember John and Michelle Stevens at their funerals.