Updated

A man who was shot to death by police after holding a 13-year-old boy hostage for nearly 18 hours had skipped a meeting with his parole officer last month and a warrant had been issued for his arrest, authorities said.

Don Pooley, 34, was listed as "absconded" on Jan. 10 after missing the parole meeting, Colorado Department of Corrections spokesman Roger Hudson said Tuesday after Pooley was killed by police in the Denver suburb of Arvada.

Hudson said he did not know when the arrest warrant was issued.

A SWAT team rescued the boy immediately after Pooley was shot at the front door of the house in which he was barricaded. The boy, whose name wasn't released, was not physically harmed, authorities said.

His ordeal lasted nearly 18 hours.

Arvada Police Chief Don Wick said the standoff began in the residential neighborhood north of Denver after police responded to a domestic dispute call at 5:30 p.m. Monday. A man later identified as Pooley fled, then forced his way into a nearby home where the 13-year-old who was home alone, police said.

Police said Pooley and the boy didn't know each other.

Pooley was shot at about 11 a.m. Tuesday when he went to the door to retrieve some unspecified items that police negotiators had left for him.

Pooley had been sentenced to 10 years in prison in 2008 for possession of a controlled substance, and he was released on parole in October.

Hudson said Pooley did not have a monitor ankle bracelet because he had been convicted of nonviolent crimes.

State prison officials revamped procedures for monitoring parolees after Evan Ebel, a white supremacist gang member on parole, slipped out of an ankle monitor last year. Ebel was later tied to two slayings, including the March 19 death of Tom Clements, executive director of the Corrections Department.

It took authorities six days to issue an arrest warrant for Ebel, who died in a shootout with authorities in Texas.

Pooley's record also includes convictions for criminal trespass, escape and unreasonable noise. Details of those cases were not immediately available.