Harrison was sued by Dwight Dixon, a convicted drug dealer who was shot outside Chuckie's Garage, a North Philadelphia business owned by Harrison, on April 29, 2008. The two men had two altercations earlier in the day when Harrison denied Dixon entry into a sports bar he owned and operated. Dixon alleged that Harrison was the gunman who shot at him. On January 6, 2009, Philadelphia District Attorney Lynne Abraham confirmed that it was Harrison's gun that fired shots at Dixon but they had been unable to determine who pulled the trigger.
The Philadelphia District Attorney also stated that she was not going to pursue charges in this case due to conflicting witness statements. Dixon, who had initially given the police a false name and claimed he was robbed by two men when interviewed at the hospital, was subsequently convicted of filing a false report for this incident on January 28, 2009. Dixon was sentenced to 6 months probation. Dixon's attorney reportedly sought a new trial as the conviction violated Dixon's parole in an unrelated case. Harrison is also being sued by Robert Nixon, a victim caught in the crossfire of the shooting who identified Harrison as the shooter in a statement to police.
Dixon died on July 21, 2009 when he was shot several times while in his car outside a building two blocks away from Harrison's sports bar. On June 16, 2010, Shaun Assael of ESPN The Magazine reports that police confiscated a 9mm handgun from Harrison during a routine traffic stop on Wednesday in Philadelphia. Police will test the gun to see if it matches three spent 9mm shell casings that ended up inside the truck driven by the late Dwight Dixon at the scene of an April 2008 shooting. Dixon, who eventually was shot and killed after filing a civil lawsuit, claimed that the casings came from a second gun that Harrison fired. Authorities already have matched other bullets to a separate gun that Harrison owns—and that he admitted was in his possession on the day the shooting occurred. Police found the gun during a search of Harrison's Escalade. The stop occurred as Harrison drove the vehicle the wrong way on a one-way street. Harrison claimed he did not have a gun. But police believed they saw Harrison put what appeared to be a weapon in the console between the two front seats. They concluded that they had probable cause to search the vehicle, and they found the gun. The FBI has become involved in the investigation.