SAN ANTONIO, Texas -- The search for baby Gabriel in San Antonio led to new developments and a fair amount of intrigue on Tuesday. After weeks of waiting for the weather to break, San Antonio authorities finally began to excavate a nearby landfill. But the job is so immense, it will be another week before they get to the area that could contain evidence left behind by Elizabeth Johnson, even little Gabriel's body.

“We will begin by removing 50 feet of debris. Once we’ve removed debris and searched our target area, we will begin the arduous task of sifting through layers," said San Antonio Police Chief William McMannus.

Despite this massive effort, there are still two investigations ongoing simultaneously, both of homicide and missing persons. In fact, the FBI on Tuesday interviewed the pizza delivery driver located by CBS5's Pat McReynolds on Monday. Tabor Morris delivered an order to Elizabeth Johnson at the Homegate Hotel on Dec. 21. The receipts he provided indicate she may not have dined alone.

“Let me say this, the San Antonio community is a very tight community, and it takes very personally crimes against children, and the community will not tolerate this, the police department will not tolerate this and we are doing everything that we can to track down baby Gabriel and hopefully we’ll find that baby alive,” said McMannus.

But there may be some in San Antonio trying to thwart the search efforts. Just one day after receiving word that their own investigating is stirring up a hornet's nest in the world of illegal underground adoptions, someone broke into the truck Gabriel's father, Logan McQueary, was using. The culprits stole only a GPS, and didn't touch bags of luggage or portable radios sitting on the seats. Homicide detectives, as well as patrol officers, showed up to investigate, but told McQueary and his family that, for now, they should refrain from television interviews.

“There are no leads that we are not following up on and we are chasing down every lead that we come across and we are chasing it down very vigorously,” said McMannus.

The landfill dig will begin every weekday morning at 7:30 a.m. and continue until 6 p.m. Because rain causes toxic runoff, the search can only happen on good weather days. More than 20 people will be trained for this effort, hoping for the best, not knowing what they'll find.