Lou Welch In the fictional Babylon 5 universe , Lou Welch was a member of the station 's security force . He served for several years on board Babylon 5 , and was one of Michael Garibaldi 's close friends . Spoiler warning : Plot and/or ending details follow . He later died on Centauri Prime when he was murdered by the Prime Candidates and the Drakh . This Babylon 5 -related article is a stub . You can help Wikipedia by expanding it . Categories : Babylon 5 stubs | Babylon 5 characters 