Austin Harrouff, 19, is accused of murdering a couple in their Florida home and seriously injuring a neighbor who was trying to save their lives. The teen was dubbed the “face eating” frat boy after he allegedly tore the flesh off one of the victim’s face and abdomen with his teeth. Police claim the all-American FSU college student transformed into a brutal superhuman killer when he committed the gruesome murders.

WATCH: Father Of Frat Boy Dubbed 'The Cannibal Killer' Describes What He Calls Son’s ‘Abnormal’ Behavior Before The Attack

However, his father, Dr. Wade Harrouff, is adamant that his son is not a monster and says he never believed the teen was capable of this type of behavior.

“He’s always been the kindest, caring kid I’ve ever seen. He always wanted to help people,” Dr. Harrouff tells Dr. Phil in an exclusive sit-down interview airing on Wednesday.

WATCH: The One Thing Dad Of Florida Frat Boy Accused Of Gruesome Murders Wants People To Know About His Son

The distraught father, who admits that his son started to exhibit some bizarre behaviors a few weeks prior to the murders, explains what he believes caused his son to act out, in the video above.

On Wednesday’s episode of Dr. Phil, Dr. Harrouff recalls the first thing police said to him when they told him about the murders. And, hear his message to the families of the victims. Check here to see where you can watch.