Shinning, part 5

I went downstairs tonight.  An innocent trip into the basement to put Scooby to bed.  there, on the wall of the basement was four letters, poorly covered in spackling, a pathetic attempt to hide a threat.

KI

KIL

KILL

Why? Its like a 1970's horror flick: the female is alone, on a lake, isolated, the phone does not work, sprained ankle, pick your movie, twins at the end of the hall, messages written in lipstick backwards, what the ^*(& was that bump, knock I just heard?
I am sleeping with the lights on tonight.