Police Officer

It actually takes five to seven minutes for somebody to actually kill another human being as they strangle him. So that is five to seven minutes where somebody is face to face with their victim, watching as they gasp for air, watching as their eyes fill up with blood. It is an incredibly gruesome, incredibly intimate form of homicide.

The reason that's important is when you look at domestic violence homicides that involve manual strangulation, there have often been instances involving non-fatal strangulation.

The reason that's important is when you look at domestic violence homicides that involve manual strangulation, there have often been instances involving non-fatal strangulation.

Where did he hit you?

Where did he hit you?

Don't worry, just be honest.

Don't worry, just be honest.

This is a vicious death by any interpretation. And now, all the energy that the public had poured into finding Gabby Petito is directed at finding Brian Laundrie.

This is a vicious death by any interpretation. And now, all the energy that the public had poured into finding Gabby Petito is directed at finding Brian Laundrie.

Soon, there would be clues about what Brian is hiding.

Soon, there would be clues about what Brian is hiding.

According to the FBI, while Brian was driving Gabby's van back to Florida, it seemed as if he was trying to cover his tracks. The FBI would later say he was attempting to deceive law enforcement by sending text messages to and from Gabby's phone, as well as from Gabby's phone to her mother.

According to the FBI, while Brian was driving Gabby's van back to Florida, it seemed as if he was trying to cover his tracks. The FBI would later say he was attempting to deceive law enforcement by sending text messages to and from Gabby's phone, as well as from Gabby's phone to her mother.

The search for Brian, first out west, then in the south, is now focused on an area in Florida not far from where his parents lived. A few weeks into the search, Brian's parents join the effort. They go into an area in the park that they had told police to search, but it had been underwater at the time. Shortly after, authorities find his remains.

The search for Brian, first out west, then in the south, is now focused on an area in Florida not far from where his parents lived. A few weeks into the search, Brian's parents join the effort. They go into an area in the park that they had told police to search, but it had been underwater at the time. Shortly after, authorities find his remains.

Earlier today, investigators found what appears to be human remains along with personal items.

Earlier today, investigators found what appears to be human remains along with personal items.

A lawyer representing the Laundries has said the letter had nothing to do with Gabby Petito's death and had been written months earlier. Roberta Laundry would later say in an affidavit the letter was a reference to a book she'd given him called Burn After Writing, and it was intended as a way to bond with her son.

A lawyer representing the Laundries has said the letter had nothing to do with Gabby Petito's death and had been written months earlier. Roberta Laundry would later say in an affidavit the letter was a reference to a book she'd given him called Burn After Writing, and it was intended as a way to bond with her son.

The Petitos file multiple lawsuits. One of them is for wrongful death against Brian Laundrie's estate. Months later, there is a settlement.