Published: Jan 03, 2014 11:43 PM EST

SAN CARLOS PARK, Fla. - WINK News is learning it took one critical tip to bust a nationwide drug operation in southwest Florida. Right now, the alleged ringleader, 28-year-old Ryan Carroll is behind bars in the Lee County Jail. This, after deputies seized more than 700 pounds of synthetic marijuana from his home.

Neighbors on Meadow Lake Circle didn't know much about the people living inside this home at 17363. But they sensed something was off when we saw how many packages were being shipped to and from the home.

According to a new arrest report, a FedEx driver noticed a "funny odor" coming from 18 brown cardboard boxes requested by Ryan Carroll to be picked up at his home. New Year's Eve, investigators raided that house, along with two others in San Carlos Park, seizing 700 pounds and 79,000 packets of drugs  along with semi-automatic weapons. The bust put Carroll, Benjamin Smith and James Allen behind bars.

WINK News reached out to FedEx to find out how workers are trained to spot red flags like this one. A spokesperson only could tell us that they use multiple levels of security and cooperate fully with local, state and federal authorities.

Carroll recently made headlines when he won a contest to see the TV show Breaking Bad's finale with the cast members. Breaking Bad is a series that follows a teacher who makes and distributes meth.