Toxicology report released for psychiatrist in murder suicide case.

From the Santa Maria Times

A San Luis Obispo psychiatrist who shot and killed his wife and 7-year-old daughter and then turned the gun on himself had no evidence of drugs or alcohol in his system at the time of the killings, according to the San Luis Obispo Police Department.

Complete toxicology reports released from the County Coroner’s Office on Tuesday indicate there were no drugs or alcohol found in John Rivard’s blood, police said.

Police found John Michael “Mike” Rivard, 48, Barbara Rivard, 44, and their daughter Olivia Rivard, 7, dead in their home in the 1700 block of Frambuesa Drive in San Luis Obispo shortly after 7 a.m. Oct. 3. All three died from gunshot wounds.

An investigation revealed that Rivard beat his wife with a metal flashlight before shooting her once in the head, after she argued with the couple’s daughter, Olivia.

Rivard also shot Olivia once in the head and then turned the gun on himself.

The couple’s two other children, a 5-year-old girl and a 4-year-old boy, were found unharmed inside the Rivard home.