The same day the interview aired on ABC, police in Florida were spotted at the Laundrie home. They said they were not speaking with Brian himself, but with the Laundrie family "at their request."
The circumstances surrounding the discussion are not yet clear, but police were seen searching a Mustang in the driveway and entering the home with a brown bag -- presumably to collect evidence.
In her interview with GMA, Cassie Laundrie said she has spoken to police but not with her brother since he returned home to North Port, Florida.
"I wish I could talk to him," she said. "I've cooperated every way that I can. I wish I had information or I would give more."
RELATED | Gabby Petito disappearance timeline: What we know so far
North Port police spokesperson Josh Taylor confirmed that law enforcement has touched based with her, including the FBI, but he said nothing of substance has been shared and that Brian Laundie has still not spoken to them.
"Obviously me and my family want Gabby to be found safe," Cassie Laundrie said. "She's like a sister and my children love her, and all I want is for her to come home safe and sound and this to be just a big misunderstanding."
WATCH | Exclusive interview with Brian Laundrie's sister (Full log below):
Petito has been missing since late August while on a cross-country trip with Brian Laundrie, and on Friday, her father spoke out, saying it's hard to keep positive.
"I'm trying to focus on the scenario I have in my head, that she's stuck somewhere and she just needs help," Joe Petito said. "We've got to just go get her and bring her home. I know how these things sometimes end, and you know, I just try not to think of that."
Cassie Laundrie said is holding out hope that Gabby Petito is alive.
"I talked to the police the second they called," she said. "I called them right back. We were in Orlando on vacation with my kids at Disney and we came back to this."
The North Port Florida police department says they wish Brian Laundrie and his parents were more forthcoming.
Petito and Laundrie grew up in Suffolk County but had been living with Laundrie's parents in Florida for the past two years.
Police say Brian Laundrie has no prior criminal history, and the couple had no documented history of domestic issues.
On Thursday, the Moab City Police Department released bodycam video of their response to a domestic disturbance between the couple August 12.
Petito attacked Laundrie and was almost charged with domestic assault, according to the report, but instead, police separated them for the night.
"It looks typical of both of them," Cassie Laundrie said. "Whenever they fight, they would take a little break and come back and be fine."
WATCH THE FULL BODY CAM VIDEO:
Police say no criminality is suspected in Petito's disappearance at this point.
The last her family heard, she was in Grand Teton, Wyoming, on their road trip to Oregon.
Brian Laundrie returned to Florida more than two weeks ago with their van but without his fiancée.
"We have nothing definitive that Gabby is no longer with us," Taylor said. "I think its important we all hold out hope."
Petito is described as a white female, approximately 5-foot-5 and 110 pounds.
She has blonde hair, blue eyes, and several tattoos, including one on her finger and one on her forearm that reads "Let it be."
Detectives are asking anyone with information on Petito's disappearance to contact Suffolk County police at 1-800-220-TIPS, the North Port Police Department at 941-429-7382, or the FBI at 1-800-CALL-FBI.
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