Rohter was swept away from his home along with his wife Theresa in the early hours of Tuesday morning. Theresa was rescued and was hospitalized.
His death was confirmed by the St. Augustine Academy in Ventura which he founded in 1994.
Rebecca Riskin, 61
Riskin, 61, a real estate broker and founder of Riskin Partners, and her two dogs were also killed when the mud swept down Glenoaks Boulevard.
David Cantin, 49
Cantin died being swept away from his home along with his teenage son.
His daughter Lauren was filmed being rescued by firefighters from their home after they heard her screaming from the wreckage.
Another 13 victims who have been confirmed dead have not had their identities confirmed.
James Mitchell, 89, and Alice Mitchell, 78
Elderly couple Alice and Jim Mitchell have been missing since early on Tuesday along with their