Gabby Petito Case: Brian Laundrie’s parents accused of “suspicious” behavior as they change timeline

Brian Laundrie's parents have been accused of "suspicious" behavior after they changed the timeline of their son's disappearance and refused to make a public plea for him to turn himself in.

Chris and Roberta Laundrie were dragged into the spotlight last month after they reported their son Brian missing in Florida just two days before his fiancee Gabby Petito's body was discovered in Wyoming.

In the following weeks, speculation has continued to mount over how much Laundrie's parents know about his whereabouts and his potential involvement in Gabby's homicide.

Suspicions reached new heights earlier this week when the Laundrie family attorney revealed his parents gave the incorrect date for his alleged disappearance into the Carlton Reserve in September.

Brian "left to hike in the preserve" on Monday, September 13, not Tuesday, September 14, as originally shared, according to a Monday statement from lawyer Steven Bertolino.

"The Laundries were basing the date Brian left on their recollection of certain events,” Bertolino said.

After consulting with the FBI and confirming the day Brian’s Mustang was found and returned to the Laundries’ home, Bertolino added, “we now believe the day Brian left to hike in the preserve was Monday September 13."

Two days later Bertolino announced that Chris and Roberta were offering law enforcement a helping hand in the reserve search for their son.

"Chris was asked to point out any favorite trails or spots that Brian may have used in the preserve,” Bertolino said.

However, many sleuths both amateur and expert continue to harbor doubts about the parents.

Even Chris and Roberta's own daughter, Cassie, has suggested she doesn't know if she can trust her parents. Talking to protesters outside her home in Lakewood Ranch, Florida she said: “I am losing my parents and my brother and my children’s aunt and my future sister-in-law.”

Cassie also alleged that her family is "freezing" her out, adding: "They’re not talking to us either."

When asked why, Cassie said: "If I knew, I would say, I don't know."