In the film 'Kalifornia', why is the title spelt that way?

There is this according to the screenwriter Tim Matcalfe

https://en.wikipedia.org/wiki/Kalifornia#cite_note-metcalfe-1

and that comes from...

"Rather, it was written (with Stephen Levy back in 1987 and called "Kalifornia") for a few other simple reasons: to scare an audience, to comment on our national obsession with "true crime" stories, and to punish myself for my morbid preoccupation with the subject of murder and murderers. What better way than to create a character who thinks he's an expert on killers, than to plant a homicidal ex-con in the back seat of his car on an extended road trip and see how inordinately long it takes him to figure it out? In other words, the picture as originally written was meant to be black comedy."

http://articles.latimes.com/1993-09-27/entertainment/ca-39503_1_writers-guild