Visible crew/equipment: When Katrina Townsley's driving while talking on her cell phone the unsub is driving behind her, and we see that she's alone in her car, but when the unsub rear-ends her car the second cameraman is sitting in the passenger seat with a handheld camera, filming Katrina's close-ups.
Character mistake: At the end of the episode, Rossi quotes Anne of Green Gables author Lucy Maud Montgomery, but accidentally calls her "Lucille".
Chosen answer: Back in Target Rich, a hitman named Giuseppe Montolo dies whilst being interrogated by Derek. The men who abducted Derek were hired by his father, Chazz, who seems to blame Derek for his son's death. It's explained further in A Beautiful Disaster.
Annabel Keeley