>> reporter: nancy, we're here in newburgh, new york, where we're awaiting the results of the autopsy which was conducted today. we're still awaiting the manner of death as well as the cause of death, which police have not released yet. we're also awaiting test results, dna test results, which will 100% confirm identity of the little boy. >> okay. this is something i don't understand. let me go out to doyle murphy, reporter with the "times herald record." doyle, you've covered so many cases, you and i both know that a positive i.d. can be made from dental records. did this mother never take the 4-year-old to the dentist? they don't have dental records to compare? >> talking to the police today, they said they don't have any dental records. they said that it's not uncommon for a child that young, they don't have fingerprint records. they don't have anything to match it to right now. >> i want to go to dr. robert cartwright, an expert in his field, pediatrician, just what we need tonight. doctor, thank you for being with us. when children are born, they don't take fingerprints. they tak

live, newburgh. as the search for little marc bookal intensifies, as we go to air, a tip leads police cadaver dogs to a heavily wooded area and the body of a 4-year-old boy in a duffel bag, just two blocks away from this missing boy's home. >> as part of our ongoing investigation the city of newburgh police department resumed the search for marc bookal. >> they searched the frigid waters of the hudson river. >> and he doesn't wander off. >> they searched in the woods by the shore. >> he doesn't go to strangers. >> and through the dirt near a sewage treatment plant. >> i just want my son to be found. >> a search for 4-year-old marc bookal that grows grim. law enforcement making a disturbing discovery at this hour. police say they found human remains. >> preliminary examination of those remains indicates that they are consistent with those of a small child. >> the remains hidden in a duffel bag, according to sources. the child's mother told police marc anthony just wandered away as they were getting re