Four who died in fire at star's home shot
A man, his wife and their two teenage children were shot before the million-dollar Florida home they were renting from a former tennis star burned down in what investigators called arson.
Authorities added that the blaze at the home owned by former tennis pro James Blake was perhaps exacerbated by fireworks and petrol.
Post-mortem examinations were still being completed to determine how they died, but investigators have said they are looking into the possibility of a murder-suicide.
Authorities recovered a gun at the home registered to Darrin Campbell and he bought an "exceedingly large amount" of fireworks and petrol cans days before the blaze, police said.
Investigators still have not positively identified the bodies, but the family has not been accounted for and a relative said they were inside the home when it burned.
As flames shot through the roof on Wednesday morning, neighbours reported explosions, presumably hearing fireworks go off inside.