Delia D'Ambra

From what authorities had found, it was clear that Dwayne's bank card had been swiped multiple times during the trio's road trip.

And some of those transactions were for cash withdrawals at ATMs.

In fact, one investigator estimated Dwayne's bank card had been used between 20 and 30 times during the road trip, and it had also been used after he was found dead.

The transaction started in Tennessee, and several of them were initially unsuccessful.

The wrong PIN had been used a couple times, but other transactions had gone through just fine.

In surveillance videos retrieved from a few ATMs, the footage showed only Robert, hiding his face, making or attempting to make the withdrawals.

In several clips, though, authorities could make out in the background a woman in the passenger seat of a car who looked very similar to Jennifer.

Even more suspicious, investigators who were reviewing cell phone records for Jennifer, Robert, and Dwayne's devices found text messages between Robert and Dwayne's phones where it appeared Jennifer had texted Robert what Dwayne's pin was.

And nowhere, by the way, in any of the ATM videos authorities had obtained was Dwayne visible.

And to make the police even more suspicious of the couple, when they'd spoken with Duane's neighbor in New York, she told them that under no circumstances was Duane the type of person who'd let someone else use his bank card.

She said he always preferred to do that kind of business himself.

Investigators continued to analyze Duane's flip phone since that was the only device of his that authorities had been able to find.

And because the number for that device was also the same number that he'd recently linked to his upgraded smartphone, which investigators had not located, they were still able to see a lot of his call and text message activity prior to his disappearance and murder.

Authorities also executed a search warrant for Robert's Nissan Altima, and inside they found evidence that it had been cleaned recently.

Scattered around on the seats were clothing and shoes that belonged to the couple, as well as a wheelchair that had belonged to Dwayne.

Unfortunately, Dwayne's wallet was nowhere to be found, and per court records, that and his bank card were never recovered in this case.

Authorities were, however, able to pinpoint the last time his bank accounts had been accessed.

And those records indicated someone had overdrawn his account on either December 8th or 9th, so just a few days after his neighbors saw him leave with Jennifer and Robert, but shortly before he was found dead.

Ultimately, both Jennifer and Robert were granted bond for the exploitation charge that had been filed against them.

And according to court records, she returned to New York and he went to stay near Knoxville, Tennessee, where he had some relatives.