Last Updated Sep 4, 2014 10:43 PM EDT
HUDSON, Fla. - Detectives discovered four bodies Thursday near a Florida home where they went to check on a 4-year-old boy autistic boy who is missing along with his father, police said.
The Pasco County Sheriff's Office said when detectives arrived at the Tampa-area house Thursday afternoon, nobody was home. But they noticed a bad smell and walked down the street toward birds circling the air. That's where they found the bodies of two men and two women.
Investigators are searching for the boy, Ismael Tristan Santisteban, known as Tristan, and his father, 28-year-old Adam Matos. The boy was last seen Aug. 28 at the home in Hudson. Deputies had gone to the house that day on a domestic call involving Matos.
The missing boy and the four bodies have a connection, Sheriff Chris Nocco said at a news conference on Thursday. But he did not identify the victims or specify their relationship to Santisteban or Matos, the Tampa Tribune reported.
An Amber Alert was issued for Tristan, and Nocco pleaded with the public for help finding the child.
"Our biggest concern is finding little Tristan," Nocco said, according to CBS affiliate WTSP. "We are very, very concerned for him."
Matos has been in trouble with the law in Pennsylvania, arrested several times between 2007 and 2010 and should be considered dangerous, the Tribune said. He has not been seen since before authorities went to answer the domestic call.
The home where the bodies were found had been empty for about two years, said neighbor Ed Nilon.
But he said about a week ago or so, a motor home pulled up into the driveway.
"We never saw a moving truck. We never saw anyone move into the premises,'' Nilon said. "Usually, a house this size you'd see an 18-wheeler. It's like they just popped up.''