Former congressman and libertarian icon Ron Paul tweeted a startling reaction to the death of SEAL sniper Chris Kyle on Monday:

Chris Kyle’s death seems to confirm that “he who lives by the sword dies by the sword.” Treating PTSD at a firing range doesn’t make sense — Ron Paul (@RonPaul) February 4, 2013

Kyle and a friend were both killed by a veteran struggling with PTSD while working with him at a gun range on Saturday.

The former Marine, Eddie Ray Routh, turned his weapon on the other two men and shot them at close range, according to news accounts.

Kyle was the author of the best-selling “American Sniper,” which detailed his time as a record-holding SEAL sniper.

Paul has a long history of being opposed to American military intervention abroad.

Follow Vince on Twitter