San Francisco police are asking for the public's help in learning more information about a possible suspect in the 1984 disappearance of Kevin Collins when he was only 10 years old.

The Collins case garnered national attention at the time.

Police Chief Greg Suhr on Wednesday said investigators are seeking more information on a man they believe may have abducted Kevin Collins from a bus stop in 1984.

On Wednesday, authorities revealed new details about 51-year-old Wayne Jackson – also known as Dan Therrien – who was described as a person of interest.

"He lived not far from where the abduction happened, he had a dog similar to the dog the suspect was seen to have," said S.F. Police Chief Greg Suhr.

At the time, eyewitnesses and a consent search of Jackson's house in 1984 failed to conclusively tie him to the case.

Investigators Wednesday said Jackson had five different identities and a history of kidnapping, lewd acts and sexual assaults against boys in Canada and one at Fishermen's Wharf in the years before Collins disappeared.

Cold case investigators said they developed new leads, which prompted the search of Jackson's old house last month.

Police have turned to the public in the hopes of uncovering more information about Jackson.

"What we're looking for now is anybody that saw this guy back in 1984, anybody that talked to this guy back in 1984," said Suhr.

Police said they have talked to Jackson's former roommate about this case. They declined to say whether they found Jackson's old car and whether it has yielded any clues.

KTVU spoke with Collin's mother and two sisters Wednesday afternoon and got their thoughts on the new developments.

Ann Collins has waited for decades, but now she can put a face to the man who may have killed her son.

"When we heard his background, I just got chills, you know?" said Collins.

She told KTVU she does not recognize Jackson, a man who in February 1984 lived just blocks from the Collins family home in the Haight.

"In a way, the guy got away with murder. He never had to face the court of law for anything, apparently. But he faced a higher court," said Collins.

Tuesday night, KTVU cameras saw San Francisco inspectors leaving Ann Collins' home in Concord. She said they showed her the pictures of Jackson and let her know that they were taking it public hoping to generate new leads.

"Now we have a face, which means nothing to any of us, but hopefully it means something to somebody out there that remembers something," said Ann Collins.

Two of Kevin's sisters were there and also sat down with KTVU to talk about the new information in the case.

"I think this is as much as we will know about Kevin," said Laura Collins. "Unfortunately, killers generally don’t look like killers. He didn’t look menacing and large and overwhelming."

"The biggest thing for me was they moved it from missing person case to homicide," said sister Michelle Collins.