With Brian Laundrie dead, here's where else authorities could look for answers on what happened to Gabby Petito

With Laundrie now gone and many questions still unanswered, experts say investigators could home in on crime scenes, circumstances and key items to help them answer what happened to Petito

Laundrie's remains were found Wednesday in the Florida reserve authorities had been combing through for more than a month.

Over the summer, the couple embarked on a cross-country road trip, from which Laundrie returned to their North Port, Florida, home alone on September 1, police say. On September 11, Petito's parents reported her missing.

Laundrie, without talking to authorities during Petito's disappearance, left his home September 13 and was not seen again, his parents later told police.

The young woman's remains were recovered in Wyoming on September 19. A coroner ruled she died by strangulation. But little else is known -- at least to the public -- about what led up to Petito's death.