According to coroner Andrew Tweddle the killing spree at Horden on New Year's Day 2012 by Michael Atherton was "avoidable".

BBC: Who controlled the use of guns in County Durham?

Dorner, a 33-year-old former Navy reservist, is suspected of killing three people in a spree across southern California last week, including a policeman.

BBC: Christopher Dorner: LA police end hunt after body found