After ‘preventable’ tragedy, family prepares to bury boy in Broward Published: Updated: Tags: Family prepares to bury boy killed in father's murder-suicide FORT LAUDERDALE, Fla. – A grieving mother is preparing to bury her beloved 4-year-old son, Greyson Martin Kessler, on Wednesday in Broward County. John Stacey shot and killed his son before turning the gun on himself just after Greyson’s mother, Ali Kessler, reported the boy was in danger. The parents shared custody and it was his designated time. Ali Kessler told authorities she feared her father's son was going to kill him. On Friday, officers found both of them dead. She believes the tragedy could have been prevented.