MIAMI (Reuters) - Florida authorities are not pursuing any suspects in a blaze that killed a family of four in a mansion owned by former tennis professional James Blake, an official said on Thursday, raising the possibility the fire may have been a murder-suicide.
Detectives were still working to identify the people and determine the cause of Wednesday's fire, said Debbie Carter, a spokeswoman for the Hillsborough County Sheriff's Department. Investigators found fireworks throughout the Tampa property.
"At this time, we do not have a suspect that we are pursuing," Carter said. "We will see where the investigation leads us."
Blake was renting the more-than-6,000 square foot Tampa home and was not in the property when the fire broke out.
In a statement on Thursday, Tampa technology company VASTEC identified the victims as Darrin Campbell, the firm's chief operating officer, and his family, TV station WFTS reported. A VASTEC official could not be immediately reached for comment.
The Hillsborough County Sheriff's Office said two male and two female bodies were found inside the house. Two of the bodies showed signs of upper body trauma, but officials did not immediately provide additional details.
The Tampa Bay Times reported that Campbell purchased some $600 worth of fireworks on Sunday.
William Weimer, the vice president of Phantom Fireworks, told the Times that surveillance footage showed Campbell bought six packages of small firecrackers and seven packs of aerial fireworks designed to shoot into the sky.
"There was nothing about the transaction itself or the products he purchased that would be out of the ordinary," Weimer said. "You'd probably purchase more to shoot off on the Fourth of July."
Authorities received a call to 911 reporting an explosion and fire at the home at 5:45 a.m. Wednesday.
"I was walking my dog and the house just exploded," the caller said. "The house is engulfed in flames." Police released a recording of the call.
Blake, 34, retired from professional tennis in 2013. He bought the five-bedroom, five-bathroom house for $1.5 million in 2005, according to Hillsborough County property records.
(Reporting by Kevin Gray; Editing by Grant McCool)