1587 J. Hooker Chron. Ireland 182/2 in (new ed.) II He receiued his iust reward of..a freend killer.
1872 R. Monckton Milnes Let. 3 Jan. in (1890) II. xvii. 259 Office is a terrible friend-killer.
2010 (Nexis) 25 Feb. He earned the nickname the ‘friend-killer’ for his..willingness to kill those within his own cartel.