Avila mansion, scene of murder-suicide, demolished

TAMPA - Demolition of the 6,000 square foot Avila mansion where deputies say a man fatally shot his wife, son and daughter before turning the gun on himself began on Tuesday.

The demolition was authorized after investigators concluded their work at the home.

Video from Action Air One showed the slow process at 16223 Sierra de Avila.

Darrin Campbell “systematically” shot his wife, son and daughter in the rented mansion before setting the house on fire and then killing himself, according to the Hillsborough County Sheriff’s Office.

The autopsy reports on 18-year-old Colin Campbell, his 15-year-old sister, Megan, and their mother, Kimberly Campbell, are nearly identical. Cause of death: A single gunshot wound of the head. Manner of death: Homicide.

Former Hillsborough County Sheriff's Office deputy Rod Reder has investigated countless domestic attacks. He hoped Darrin Campbell's autopsy report with it's medical detail might offer a clue as to the motive.

"Sometimes somebody develops a brain tumor, maybe they've ingested some kind of drug, a hallucinogen. It's just not there," said Reder.

There is a mention of hypertensive heart disease and a blood alcohol level of .14 in the report -- too drunk to drive under Florida law, but not a level that would incapacitate most people.

Campbell, investigators said, carefully planned the murders and fire with purchases of gasoline and fireworks intended to destroy the home with himself, his wife, son and daughter inside.

The residence was owned by retired tennis star James Blake, who bought the home in 2005 for $1.5 million.

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