8. End of Watch

Complete story — includes the ending

Flynn, a Highway Patrol officer, is murdered; his sidearm had been replaced with an airsoft gun. Flynn was a drug addict. He stole guns from the police department's Rodman's Neck Armory, replacing them with airsoft guns, and sold the real weapons to fund his addiction. His buyer, Buros, a wanted arms dealer, already had buyers lined up for the prized military-grade police weapons, but Flynn, now clean, refused to obtain more for him. Buros killed Flynn, as he would be given an inspector's funeral attended by thousands of police officers, leaving the Armory poorly guarded, but Flynn's crimes came to light and his special funeral was canceled. So Buros kills another officer to cause another such funeral. He steals the weapons. Watson identifies the white fibers he left at both murder scenes as upholstery fibers - Buros plans to ship the weapons hidden inside furniture. He is arrested after his cargo shipment is traced. Meanwhile, Sherlock finds the person posting his personal statements made in sobriety meetings on a recovery blog, and insists they take the blog down, as anonymity is vital for the success of the meetings.