Did cadaver dogs undercover the remains of 'Baby Lisa?'

Cadaver dogs discovered a "hit" -- an possible indication of human remains -- in the Kansas City bedroom belonging to a couple who said their 10-month-year-old girl vanished, but an attorney for the parents of missing "Baby Lisa" warned the public against jumping to conclusions.

The revelation, reported by ABC news, also comes on the heels of the disclosure that two witnesses reported an unusual sight on the same day that the little girl was reported missing: a man walking down the street in the cold nighttime air carrying a baby wearing only diaper.

The parents, Deborah Bradley and Jeremy Irwin, have contended from the start that they had nothing to do with their daughter's Oct. 4 disappearance. They say police have wrongly focused the investigation on them instead of pouring the additional resources into finding the culprit who kidnapped their child. Police, meanwhile, insist they are doing just that.

Until the reports about a man carrying a child on Kansas City streets at about 4 a.m. on Oct. 4, many of the details that have leaked out have seemed to cast a negative light on the parents, such as the mother's admission that she was so drunk the night her child disappeared that she might have blacked out. The mother has also repeatedly said she expects she will be arrested.

The latest details, contained in court documents obtained by ABC, also appear to raise questions about the parents' involvement: Handlers say cadaver dogs detected the scent of human remains alongside the parents' bed, raising the possibility that it could be the remains of Baby Lisa. But a legal representative for the the parents, Cyndy Short, told "Good Morning America" that it was too soon to reach any such conclusion, and that a false hit could also be to blame.

Short said that cadaver dogs can detect human remains years after the fact, and she noted that the couple live in a home that is several decades old. "This is an old home, 63 years old. There could be a lot of explanations for that," she said.

A spokesman for the Kansas City Police could not be reached Saturday for comment about the new developments. But earlier in the week, spokesman Steve Young said the department had followed up on ablut 1,000 tips, phone calls and leads, even a report of a couple in California carrying a child that bore a resemblance to Baby Lisa. Many of the leads and tips did not pan out, he said, but authorities continue to work on them and have not ruled anything out.