Remember the Great Columbia University Frat Boy Drug Bust of 2010? Frat boy cocaine kingpin Harrison David is heading to Rikers Island: He turned himself in today to serve six months in jail, followed by five years of probation. With good behavior and time served (his plastic surgeon father refused to bail him out for two weeks after the arrest) the 20-year-old will likely serve three and a half months.

Harrison, whom we dubbed "the sexy one" of the Columbia frat boy drug cartel, recently updated his Facebook profile with a sexier picture. The better to lure lady pen pals with?

The New York Post characterizes Harrison as "the biggest coke dealer" of his bunch. The remaining four all face felony charges; the prosecution is offering no-jail deals if they plead guilty. [NY Post]