The six items removed from the home were a multicolored comforter, purple shorts, a Disney character shirt, a glow worm toy, a Cars-themed blanket, rolls of tape and a tape dispenser.
"The search itself lasted 17 hours. That's a very long time, and would suggest a very thorough search. But now having been in the house and seen how many items they took out of the house, it's frankly surprising," Short said.
Though suspicions have surrounded Lisa's parents, surveillance video footage obtained by ABC News over the weekend also fueled speculation that the toddler was snatched from her crib by a stranger.
Surveillance video from a gas station obtained over the weekend has raised questions about grainy footage of a figure in white emerging from the woods not far from the Irwin home, which could support eyewitness accounts of a man carrying a baby late at night around the time Lisa disappeared.
As the search for Lisa enters its fourth week with no suspects and no trace of the little girl, her parents made an appearance Sunday night at a vigil outside the family's home. They did not speak, but Bradley sobbed and trembled as Irwin held his arms around her.
Lisa has been missing since the night of Oct. 3 and an anonymous benefactor is offering a $100,000 reward for Baby Lisa's safe return or the conviction of whoever took the little girl.