First Officer William M. Murdoch had originally been Titanic's Chief Officer until he was bumped to First Officer by Captain Smith's insistence that Henry Wilde join him as Chief Officer for Titanic's maiden voyage.  In fact, on Titanic's sea trials and on her voyage from Belfast to Southampton, William Murdoch served as Titanic's Chief Officer.  Murdoch was known to have been bitter towards Captain Smith regarding this demotion.  First Officer Murdoch was in command on the bridge of Titanic at 11:40 p.m. on April 14, 1912, when she struck the iceberg, rupturing her steel hull and eventually causing Titanic to founder.  Some controversy surrounds First Officer Murdoch's end.  There are some reports that he shot himself as the last of Titanic's lifeboats were launched while other reports have him staying at his duty post to the last.  In that First Officer Murdoch's body was not recovered from the North Atlantic, the true story may never be known.