In case a final nail is needed in this one, Snopes says this:
(Note: Snopes credits the site "Hip-Hop Hangover" as the originators of the story.)
http://www.snopes.com/media/notnews/cannibal.asp
The article relies on a common misconception: that
last meal requests, no matter how difficult or implausible they may be, must be honored. As we note in a similar article, this is simply not the case. Not only is there no law mandating last meal requests be honored by prison officials, the practice is a rapidly-dying courtesy that is not always extended to condemned prisoners (and has already been eliminated in the state of Texas).
It's also worth noting the mugshot circulating with later iterations of the rumor is neither of a man named Steven K. Walker, nor of a prisoner on Texas' death row. The man pictured is Kyle Walker of Florida, who was
arrested on a moving violation charge in the Sunshine State in July 2014. Walker was accused not of cannibalism, but of "tailgating, flashing his lights, and honking his horn excessively."
Plausibility aside, Hip-Hop Hangover is one of a growing number of satire or "fake news" sites. Among the page's other stories are "
Chicago Ebola Outbreak Kills Three," "Cellphone Meme Guy, Martin Baker, Killed in Car Accident Talking on His Phone?" and "Beyonce Announces She Never Carried Blue Ivy, Reveals Surrogate."