The parents of a missing 10-month-old Missouri baby once again are cooperating with the investigation into the girl's disappearance, a police official said tonight.
Kansas City, Mo., police captain Steve Young said detectives were meeting with the family, but there still were no suspects or solid leads into the whereabouts of Lisa Irwin, who has been missing from her Kansas City home since Monday night.
"They're talking with us and that is absolutely the best thing," Young said.
FBI agents also were meeting with the missing girl's parents, Jeremy Irwin and Deborah Bradley, ABC News has learned.
On Thursday, Young said Irwin and Bradley no longer were cooperating with the investigation, though the parents maintained that they continued to cooperate and only were taking a break.
Missing Baby Lisa: Leads -- but None Solid
Though police said there were no solid leads in the case, they appeared to be pursuing a number of investigative avenues, many of which they would not comment upon directly.
Today, a crime scene investigation team from the Kansas City Police arrived at the home of the parents of the missing girl and searched the front and rear yards with metal detectors, though they would not say what they were looking for.
Police also continued to go door-to-door in the neighborhood looking for clues.
"We have a list of every residence in the neighborhood," Young said. "We don't just knock and move on. We track it. We log who we've spoken to. We log which houses haven't had an answer at the door."
On Friday, investigators questioned a teenage neighbor of Lisa's parents and forensic experts took a DNA sample, a source told ABC News. That neighbor apparently was at the home the day Lisa vanished and knew the access code to the family's garage.
Investigators are also looking into reports from the West Coast, where a couple was seen with a small child fitting Lisa's description, relative Mike Lerette told ABC affiliate KMBC-TV.
"They're pursuing surveillance tape on a couple with the baby in California," said Lerette.
FBI special agent and ABC News consultant Brad Garrett said the lead involving the teenager likely was a more helpful than the tip from California.
"I can tell you based on experience of working high-profile abductions that you get leads from literally all over the world. Is that possible? Of course it's possible. Is it likely? I don't think so," Garrett said. "I think this situation is probably going to stay within the Kansas City area."
Earlier on Friday, the FBI and police searched through a landfill for a second time, but found nothing.