Here is the ESPN.com blog article.
Basically, (and I'm going to have trouble meeting my word count here without copying and pasting the entire blog article from www.espn.go.com, but I really don't want to do that) Michael Dyer indicated that he "consistently" smoked synthetic cannabinoids during his abbreviated career in the Land of the Auburnite. Here is the al.com article. Here is the Sporting News article.
I will, however, cite liberally to wikipedia, as is my wont.
As a true freshman in 2010 Dyer rushed for 1,093 yards on 182 carries and five touchdowns, breaking the Auburn record for most rushing yards by a freshman, previously held by Bo Jackson. During the 2011 BCS National Championship Game against the Oregon Ducks he rushed for 143 yards on 22 carries and was named the Offensive Player of the Game.
Dyer finished the 2011 regular season, his sophomore year, with 1,242 yards rushing on 242 attempts, an average of 5.1 yards-per-carry. He rushed for 10 touchdowns and averaged 103.5 yards-per-game. He was named to the Associated Press' All-SEC First Team and the Coaches' All-SEC First Team. He now ranks 10th on Auburn's all-time rushing list with 2,335 yards...
Dyer has transferred to and is currently practicing with Arkansas State where Gus Malzahn was recently hired as the head coach, and will have to sit out next season due to NCAA transfer rules unless granted a waiver at some point during the 2012 summer.
Dyer testified at former Auburnite Antonio Goodwin's robbery trial that Goodwin, along with former Auburnites Dakota Mosley and Shaun Kitchens were at a party where they were drinking beer and smoking synthetic cannabinoids.
Dyer testified that Goodwin, Mosley and Kitchens wanted him to participate in the robbery because he owned a handgun, a .45-caliber Hi-Point. The group had been hanging out at Benton’s apartment, drinking and using synthetic marijuana, also known as spice. The substance was not banned in the state of Alabama until October 2011. [Darth Saban's Note: Incidentally, Mr. Dyer also turned 21 in October, 2011, seven months after this party.]