Scott "Scooter" Braun surrendered to Nassau County police on Wednesday and awaits arraignment on charges of reckless endangerment and criminal nuisance. His lawyer says he will plead not guilty.
His arrest stems from a planned appearance in November by the 16-year-old Bieber. When the crowd became unruly, police told Braun to send out a Twitter message canceling the event.
The prosecutor says it took Braun one and a half hours to send two tweets, but his lawyer says it took seven minutes. The 28-year-old Braun faces up to a year in jail if convicted.
Police at the time also arrested a vice president from Bieber's record label.
By Megan K. Scott