A man who killed a 6-year-old boy during a home invasion in Kentucky, US, has been released early on parole, leading to a White House review. The boy's father has now vowed to "kill him" if he ever crosses paths with him. Ronald Exantus, 42, attacked the Tipton family in their home on December 7, 2015. He focused his rage on little Logan Tipton, slashing him repeatedly in the head with a kitchen knife. Logan's father, Dean Tipton, confronted the intruder and was stabbed and thrown 10-15 feet, he told WLKY.