Maybe this what you're referring to: http://www.wsj.com/articles/SB10001424052702304851104579359141941621778 http://www.wsj.com/articles/SB10001424052702304851

Maybe this what you're referring to: http://www.wsj.com/articles/SB10001424052702304851104579359141941621778 http://www.wsj.com/articles/SB100014240527023048511045793591... https://en.wikipedia.org/wiki/Metcalf_sniper_attack https://en.wikipedia.org/wiki/Metcalf_sniper_attack ?