Any evidence for mysterious high-powered rifle assasinations?

Inspied by Priceguy’s Are there really professional hitmen? thread.

In the movies and on television, you always see the professional hitperson staking out a location from an upper level room or bulding roof and taking out his target with a high-powered rifle. Are there any news reports of mysterious rifle assassinations? I guess there was JFK way back when but, ignoring the conspiracy theorists, we caught the guy. And there was that attempt on the pope back in the 80’s but that turned out to be a loon as well. Anyone know if there’s ever been a documented account of a unsolved rifle assasination?

And if not, why?, seems like a nice, clean way of “cleaning” someone…

I’ve never heard of any (even the DC sniper wasn’t a mystery for too long) but considering the capabilities of some rifles, I wouldn’t be surprised. I have heard that some .50 caliber rifles are capable of hitting a target a mile away. With the right optics and environmental conditions, a sniper could nail a VIP giving a speech or some similar activity while possibly being outside a security radius, and thus able to make his getaway with a one mile head start.

Lee Harvey Oswald
James Earl Ray
Byron De La Beckwith
John Allen Muhammad

All rifle snipers from a distance, Paid assassins? People have made millions suggesting they are.

Unsolved? There is at least one in one of the Carolinas, I believe. It surfaced in the press during the DC Sniper media frenzy. I’ll look for it.