SEATTLE (AP) - A 28-year-old homeless man has been arrested in the killing of a former local radio talk show host, police said Thursday.

Scott White was arrested Wednesday night and booked into the King County jail for investigation of homicide in the killing of Mike Webb, 51, Assistant Chief Nick Metz said.

Webb hosted a late night talk show for 10 years on Seattle's KIRO radio station.

King County District Judge David Christie set bail at $1 million, saying there was sufficient evidence to hold White for investigation of second-degree murder. Prosecutors had yet to charge White with a crime.

In a statement of probable cause, police said detectives discovered that White had been using debit cards belonging to Webb after his death.

"Forensic evidence found at the scene unequivocally tied White to the murder scene," the statement said, without elaborating.

Investigators had known about White for several weeks but only learned of his location on Wednesday, and arrested him at Trolley Hill Park in Seattle's Queen Anne neighborhood, Metz said. During questioning at police headquarters, White admitted killing Webb and hiding his body in the house Webb rented, he said.

White and Webb had apparently met in November and had lived together for a while, Metz said, without providing details. He would not discuss a possible motive, whether a weapon was found or other details.

Metz said he did not have any details or background on White. He also would not say whether investigators believe White acted alone or whether police were looking for others.

A property manager cleaning out the house Webb was renting found his decomposed body in late June beneath boxes and a tarpaulin in a basement crawl space. An autopsy indicated he died sometime after April 13 - when he was last seen - from multiple sharp-force injuries.

Webb's sister filed a missing-person report in mid-May. His family members also reportedly continued to receive text messages from Webb's cell phone for a month after he disappeared, saying he was fine and going to leave town.

KIRO fired Webb in December 2005, shortly after he was charged with insurance fraud. The charges stemmed from a 2005 car wreck that caused about $6,000 in damage to Webb's Lexus when an uninsured driver hit it. King County prosecutors argued successfully that Webb bought a comprehensive insurance plan the day after the crash and filed a claim for the damage.

Webb's trial was thrown out after jurors saw Webb in the midst of a nervous breakdown outside the Seattle courthouse. He later spent 30 days at an inpatient mental health facility.

In a truncated second trial, Superior Court Judge Julie Spector found Webb guilty of felony insurance fraud and sentenced him to 240 hours of community service.

Spector also ordered Webb to continue mental health treatment for an unspecified condition.

Webb was convicted of fraud charges earlier this year, but in an interview with the Seattle P-I denied any wrongdoing and claimed the evidence against him was fabricated as part of a conspiracy.