LAFAYETTE, La. (KPEL) -- New details have emerged about what ultimately led to the arrest of Brandon Scott Lavergne, the 33-year-old man charged with the first degree murder and aggravated kidnapping of 22-year-old Mickey Shunick.

In an interview with Scott Brazda on Friday's edition of "The Afternoon Drive Home," Cpl. Paul Mouton, a Lafayette Police Department spokesperson, revealed Lavergne was being monitored very closely. They knew Lavergne worked offshore, Mouton said, and they had an idea of what routes he would normally drive.

"When it was told to us that he would be traveling," Mouton said, "that information was passed on to the Louisiana State Police who were in the area."

Mouton said Lavergne's driver's license had been altered to hide the fact he was a registered sex offender. Lavergne evidently did this in order to buy a new truck.

"When he went to purchase the new vehicle," Mouton said, "that information was covered up so that it would not show up when he made the purchase."

A white Chevrolet Z-71 registered to Lavergne was found burned out in San Jacinto County, Tex, Mouton said. Lavergne bought a white 2011 Chevrolet Silverado shortly after.

Many have expressed their frustration over the apparent lack of information coming from the police department about the case. Mouton said this is done in order to protect the integrity of the case and to avoid the unwanted possibility of a change of venue in Lavergne's trial.

"We want this suspect to be tried in our court system where the crime occurred," Mouton said. "And if a jury pool can not be pulled together and be unbiased in the decision they make, then it's going to me moved, and we don't want that."

Click 'Play' below to listen to the entire interview.

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