ABERDEEN, Wash. (AP) - The mother of a critically burned man who was dropped off at an Aberdeen hospital has asked anyone with information on what happened to him to contact the Grays Harbor County sheriff's office.

The 41-year-old Aberdeen man, Marlon Lee, remains in intensive care at Harborview Medical Center in Seattle. In a statement issued through Harborview, Lee's mother, who identified herself simply as "Carol," described her son as "a kind and loving person."

Undersheriff Rick Scott said investigators have identified the man who dropped Lee off at the Aberdeen hospital. Scott said the man is not a suspect in the case, but investigators would like to talk to him as they try to find out what happened.

Surveillance video from Grays Harbor Medical Center showed a pickup truck pull up outside the emergency room at 4 a.m.

You can see Lee get out of the truck and then just stroll into the ER, stumbling a bit as he walks.

"What this picture doesn't show is that he is bleeding pretty profusely from a head injury," said Grays Harbor Undersheriff Rick Scott.

Lee had also suffered burns to his head, neck and shoulders. He is reportedly in a medically induced coma.

In the meantime, detectives are still piecing together what led to Lee's injuries.

Neighbors said Lee rarely goes out, and friends usually visit him to play cards or video games. But detectives said Lee left his house with two women around 9 p.m. Monday and went to the Quinault Shores Casino.

Lee has had a lot of police contact over the years, as a victim, witness and sometimes a suspect. And he does have half a dozen felony convictions, several of which involve heroin.

"We haven't ruled anything out and it's very possible given the people he's known to associate with," Scott said.