Wayne Janssen was Kate's biological father, though he was likely unaware of this. He beat Kate's mother Diane, was an alcoholic, and made sexual advances toward Kate (which she vehemently rebuffed). He was killed by Kate when she blew up his house in 2001. At the time she killed him, she was aware of the fact he was her biological father. ("What Kate Did")
Possible channel through Sawyer on the Island
While tending an injured, delirious Sawyer in the Swan station, Kate played a record of the Patsy Cline song "Walkin' After Midnight," and told the sleeping Sawyer that she thought she saw a horse outside. Sawyer began to mumble, and as Kate leaned in to hear better, Sawyer grabbed her by the neck and said, "You killed me. Why did you kill me?" He later stirred from his sleep only in response to the name "Wayne". ("What Kate Did")
At the Lost panel at the 2009 Comic-Con, Damon Lindelof and Carlton Cuse screened a video clip featuring John Walsh hosting the television series America's Most Wanted. He states that Wayne did not in fact die in the house explosion, but instead that his assistant Ryan Milner was killed in an explosion at Janssen's office after Kate had supposedly cut a gas line hours earlier.
- Jansenism is a Christian heresy condemned by the Catholic Church for denying the role of free will in the acceptance and use of grace. Jansenism emphasizes original sin, human depravity, the necessity of divine grace, and predestination.