Police said Terry Glenn Mortensen, 57, was wanted for violating parole in a 1977 Nevada homicide and in a 2003 assault in Washington state.
Negotiators talked to him for two hours before dawn, but he refused to leave his room at a Motel 6.
When officers used the explosive to blow the door to the room off its hinges, Mortensen sprayed a liquid from the bathroom and started a fire, said a police spokesman, Sgt. Pete Simpson.
Then, he threw knives and a hatchet out the door toward an armored vehicle, "which obviously had no effect," Simpson said.
Officers broke windows and fired tear gas inside. Mortensen was arrested when he tried to crawl out a window. He was taken to the hospital for minor injuries.
Simpson said by email that it was hard to determine details from the records he'd seen, but Mortensen appeared to have been involved in a robbery and homicide in Nevada's Clark County in the case from the 1970s.
Authorities in Las Vegas didn't have any immediate information about the case.
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