Gabby Petito was killed by another person, a Wyoming county coroner determined a day ago as the remains found in Grand Teton National Park over the weekend were confirmed to be the missing 22-year-old New York woman. But a key question -- how exactly did she die -- remains pending further analysis, officials have said. Another all-important lingering question: Where is the FBI's prime suspect, her 23-year-old fiancé Brian Laundrie? He's been missing for more than a week now after telling his parents he was heading out for a hike in a sprawling nature preserve. Police in North Port combed that 25,000-acre expanse with a new approach Tuesday and returned to continue their latest efforts on Wednesday. Nothing was found in an initial weekend search of the Carlton Reserve and nothing has turned up, so far at least, since police launched their renewed search this week. #NEWS4NOW #NBC4NY