Report: 'Craigslist Killer' Wrote Inside Jail Cell With Own Blood

BOSTON, Mass. (CBS 2) -- Two words, written in his own blood, appeared to be a final message from the alleged Craigslist killer.

Philip Markoff killed himself in his Boston jail cell on Sunday.

The Boston Globe reports the words "Megan" and "pocket" were found on the wall of his cell.

"Megan" likely refers to his former fiance, Megan McCallister. The meaning of the word "pocket" remains a mystery.

Markoff was charged with the murder of New York masseuse Julissa Brisman, whom he met through an ad on Craigslist.