There are a couple of ways to look at it :
Option A : The guy got hosed out of the sky with no attempt to pirate. Happens all the time in open.
Option B : He got interdicted. The pirate attempted role play, and he didn't comply.
In both cases, <shrug>, it happens in OPEN. Personally, I moved to private after getting tired of all the mail-slot blocking, pad-hogging, salt-mining, murder hobos sucking the enjoyment out of the game. Once or twice I can see the laughs, like the guy who made it to Sag-A in a combat ship. OK, that was funny..ONCE OR TWICE. Or the CMDR's who found the blind spot to the station defenses INSIDE the station. All right, major props for innovation ! I'll even go for the groups using a spotter inside the stations to tell who's leaving, that mimics the germans in WWII using the NY Times shipping pages to tell what ships were putting to sea and when. But seal-clubbing in the noob zones ? Nope. Hanging out in Deciat to stomp un-engineered ships ? Nope. Using a meta-gamed FDL to shoot up T-7's hauling bio-waste ? Nope.
But when I end up spending most of my time chasing off ganker wannabes, waiting for pads to clear that have been intentionally been blocked, or other purposefully aggravating incidents... well, enough is enough.