Xavier Sierra was 18 when he was killed on July 7, 2016, in Naples, Florida. That meeting turned violent: during a confrontation with Connie Serbu and her brother John Vargas, both Xavier and John were fatally shot.

Connie Serbu, then 43, reportedly planned the encounter and later confessed, saying she intended to confront Xavier about allegations that he had molested her daughter several years earlier. She was arrested and charged with second-degree murder; at trial prosecutors said her statements to friends and family showed premeditation and a motive of revenge, and she was convicted of second-degree murder and faced a life sentence.

What details about the lead-up to the meeting or the events in the woods might still be useful to investigators or anyone with information?