The parents of fugitive Brian Laundrie were followed by FBI agents who shadowed their every move as the couple traveled 150 miles from their North Port, Florida, home to Orlando.
Unmarked cars were seen tailing Christopher and Roberta Laundrie as they made the trek to visit their family lawyer, Steve Bertolino, on Thursday.
In photos obtained by Daily Mail, the undercover agents were caught hovering in aisles at the Orlando Public Library as Christopher and Roberta looked at books.
The agents never let the duo out of their eyes, reportedly keeping heavy surveillance on Brian's parents all day.
Despite being photographed near the offices of Jose Baez, famous for representing Casey Anthony and Aaron Hernandez, Christopher and Roberta did not meet with the high-powered attorney.
Hours into their trip, the FBI issued an arrest warrant for their son, revealing Brian used an "unauthorized" credit card to pull out $1,000 between August 30 and September 1.
Brian's fiancée Gabby Petito was reported missing on September 11, 10 days after he returned home from their cross-country trip without her.
Her body was found at Spread Creek dispersed camping area in Wyoming on September 19. A woman has come forward, claiming she dropped Brian off at the gates of that location on August 29 after picking him up hitchhiking.
Brian's parents announced he was missing on September 17 after allegedly going on a solo hike three days before. A family friend told Daily Mail Brian allegedly left "without his phone and wallet," adding that Christopher and Roberta "fear he might hurt himself."
The public is on high alert as authorities enter day 6 of the manhunt for the "person of interest" in Petito's homicide.
Most recently, a flight attendant reported a Brian "sighting" at a hotel in Canada. According to the woman, he appeared "flustered" when exiting the building and headed into a car with another male.
She also caught an image of the man, pointing out he has similar characteristics to the man on the run.
The FBI is tirelessly searching for Brian and following every lead. His whereabouts have yet to be found.