According to Billboard, Too $hort ran from a Southern California airport after TSA discovered a loaded gun in his bag. Burbank police Sgt. John Pfrommer also spoke on the situation, revealing that the rapper fled the building after TSA made the discovery, and Too $hort returned the following day with his attorney. 

*Update: We reached out to Too $hort for a comment on the situation and he told VladTV exclusively that he didn't "run" out of the airport as previously reported. The rapper said he walked out of the building, and called TSA and Burbank PD, who informed him to come back the following day to be cited. Too $hort said he followed the directions, and got a court date for a misdemeanor. He was told that these kinds of things happen often, and quite a few celebrities have done it over the years.

Source: Billboard