The recent shooting of 5 FBI agents was the worst in 35 years: 2 dead, 3 wounded. The FBI agents were serving a warrant on a dangerous child predator.
It appears the suspect may have been tipped off about the warrant as he was waiting for the agents and opened fire before they even made contact.
I can't help but wonder if Constitution-loving (anti-child-pornography) played a part in the tip-off (I'm not buying the camera excuse)