Yeah well.. when you're firing to save a loved one's life you may not think like a Navy Seal
Loved Castle's intuition when he saw through 3XK's plan.. it was his weapon after all. I'm no gun expert but can you distinguish shell casings of real bullets from blanks?
Looking forward to the next 3XK episode
I was a bit disappointed that the gang found out about Castle and Beckett this way.. i was hoping for some funny hijinks but it worked in the context of the show and the case made it pretty much impossible to hide their relationship once Castle became a suspect.