LAKESIDE, Calif. -- A search for a man suspected of abducting a 16-year-old girl after abandoning her mother and possibly her younger brother in his burning house expanded on Thursday to four western states, Mexico and Canada, with dozens of tips pouring in from Oregon and Washington.

Authorities continue to search for 16-year-old Hannah Anderson, believed to have been kidnapped by suspect James DiMaggio, 42, last seen driving a blue Nissan Versa with California license plate 6WCU986. DiMaggio is considered to be very dangerous. If you do see the car or suspect, do not approach him and call 911.

More information and details on Amber Alert website

Police also said evidence found in the remains of DiMaggio's house suggested he may have fled with homemade explosives and that his car might be booby-trapped.

San Diego County Sheriff's Capt. Duncan Fraser declined to elaborate on the nature of the evidence.

Oregon State Police fielded about 60 tips after authorities issued an Amber Alert for DiMaggio, 40, and his blue Nissan Versa. An additional eight FBI agents were assigned to a command post at San Diego sheriff's headquarters, as state and local law enforcement agencies went opn alert.

This is a pretty much an all-hands-on-deck effort. It's huge, Fraser said.

On Sunday night, authorities found the body of Hannah's mother, 44-year-old Christina Anderson, when they extinguished flames at DiMaggio's rural home. A child's body was found as they sifted through rubble in Boulevard, a tiny town 65 miles east of San Diego on the U.S.-Mexico border.

The body may be that of 8-year-old Ethan Anderson - Christina Anderson's son and Hannah Anderson's brother - but Fraser said it could take several days to identify the badly burned remains. Investigators were unable to extract DNA.

DiMaggio, a telecommunications technician at The Scripps Research Institute, was like an uncle to 16-year-old Hannah Anderson and Ethan, and close to their parents for years.

Investigators believe DiMaggio may have had an unusual infatuation with Hannah, Fraser said.

That is kind of a working theory, that it may be something of a motivator, he said. It's definitely something that we're looking at.

Dawn MacNabb, whose son Alan was close friends with Hannah, said she told her son last Friday that the Andersons were going to visit DiMaggio at his house before he moved.

She told him Jim was depressed, that it was his last weekend, MacNabb said.

Christina Anderson's father, Christopher Saincome, said his daughter visited DiMaggio's home to say goodbye before he moved to Texas

DiMaggio is wanted on suspicion of murder and arson in the search that began in California and spread to Oregon, Washington, Nevada, British Columbia and Mexico's Baja California state.

Oregon state police said a possible sighting was reported in northeast California near Alturas on Wednesday afternoon, followed by another about 50 miles along the same highway near Lakeview, in south-central Oregon.

Fraser, whose office had several hundred leads on DiMaggio's whereabouts, said the Oregon tip appeared very credible

We're taking it very seriously, he said.

Hannah Anderson is 16 years old, approximately 5-feet, 7-inches tall and weighs 115 pounds. She is white with blonde hair and blue. Hannah also has pierced ears and a nose stud.

James Dimaggio is 42 years old and described as 5 feet, nine inches tall with brown hair and brown eyes. He weighs 150 pounds.

His vehicle is described as a blue Nissan Versa with California license plate 6WCU986.

If you spot the suspect or the vehicle, call 911 immediately.

Read or Share this story: