More than five weeks have passed since Lisa disappeared, and though the case has taken a number of bizarre turns, no suspects have been identified and no major breaks have been made in the case.
Kansas City police and the FBI have conducted dozens of searches. Authorities searched wooded areas, lakes, abandoned houses and spent extensive time at the Irwin home, all to no avail.
Much of the case's drama has played out publicly. There have been numerous clashes between the family and authorities, mostly over issues of cooperation, a musical chair-like rotation of lawyers and spokespersons have occurred and a handful of potential witnesses have not led to any known progress in the search.
Lisa's parents have been at the center of public scrutiny, especially Bradley whose apparent inconsistencies about the time she last saw her daughter and admission that she was drunk the night Lisa disappeared have raised suspicions.
"This family has done nothing but cooperate," Tacopina said. "They didn't have any insight as to what happened to their daughter."
More than 1,000 tips have led to dead end and frustrations.
Bradley and Irwin have maintained from the beginning that their daughter was abducted from her crib in the middle of the night.
An anonymous benefactor is offering a $100,000 reward for baby Lisa's safe return or the conviction of whoever took the little girl.