Bill Russell released the following statement through the Celtics:
"Before boarding my flight from Seattle to Boston, I had accidentally left a legal firearm in my bag. I apologize and truly regret the mistake. I was issued a citation by the TSA, whose agents couldn't have been more thorough and professional when dealing with this. I really appreciate their efforts to keep air travel safe."
Transportation Security Administration officials discovered a loaded handgun in Russell's carry-on bag as he moved through the security checkpoint Wednesday night.