Katie Rose Fusco Pladl, 20, was killed on April 12, 2018, in a multi-state sequence of violent events that also left her adoptive father, 56-year-old Anthony Fusco, dead. The episode began after Katie, who had reunited with her biological parents at 18 and entered an intimate relationship with her biological father, Steven Pladl, reportedly ended that relationship by phone.

Pladl later was found in Dover, New York, dead of a self-inflicted gunshot wound; investigators identified him as the sole suspect and described revenge over the ended relationship as the motive.

Are there witnesses, family members, or anyone with additional information about Katie, Anthony, or the child who can help fill gaps in this timeline?