Gabby Petito was strangled to death by “human force,” according to coroner, Dr. Brent Blue. He said in a televised interview that Petito was throttled. Throttling means that someone was strangled by human force, with no mechanical force involved. In the hours since Gabby Petito's cause of death was released, Brian Laundrie’s father has been seen filling a gas can and then mowing the lawn at his home. Reporters and protestors shouted questions at Chris Laundrie, but he reportedly refused to answer any questions about his son Brian’s whereabouts and whether his son had a history of violence.Joining Nancy Grace Today:Dale Carson - Criminal Defense Attorney, Former FBI Agent, Former Police Officer, Author: "Arrest-Proof Yourself, DaleCarsonLaw.comCaryn Stark - Psychologist, www.carynstark.com, Twitter: @carynpsych, Facebook: "Caryn Stark" Sheryl McCollum - Forensic Expert & Cold Case Investigative Research Institute Founder, ColdCaseCrimes.org, Twitter: @ColdCaseTips Joe Scott Morgan - Professor of Forensics: Jacksonville State University, Author, "Blood Beneath My Feet", Host: "Body Bags with Joseph Scott Morgan"Mahsa Saeidi - Investigative Reporter, WFLA-TV (Tampa), Twitter/Instagram: @MahsaWho, Facebook: "WFLAMahsa"See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.