Is this serial killer Craigslist post for real?

Is this serial killer Craigslist post for real?

Police are investigating
Many serial killers have hunted their prey on Craigslist. Most notably, of course, is the “Craigslist Killer” Philip Markoff, a former medical student who responded to women’s ads offering erotic massage – then murdered them. Then there is Richard Beasley, who used ads to lure unemployed men to his property with the promise of work, then murdered them. Not to mention Thomas Coffee, who lured in a victim by posting an ad for an ATV for sale.
 
 
Titled “Tulsa Murder,” the author cryptically says that “it all started here,” which is why they decided to make their first kill in Tulsa. “It was stranger on stranger so the police will have a difficult time” (although less difficult for the killer having posted about it on Craigslist). The author then goes on to list several of their next targets  (in Oklahoma City) by name. The described targets are a judge and a Department of Corrections employee.
 
Police are taking the ad seriously, and have subpoenaed records from Craigslist that may help shed light on the identity of the poster. However, the Tulsa police department has announced that they are extremely skeptical that the ad is legit, because they have no recent unsolved murders on the books.
 
Police have added that they have a “person of interest” possibly because of the connection to the people who were named.