Analysis of information sources in references of the Wikipedia article "Sterling Hall bombing" in English language version.
Retired Special Agent Kent Miller, one of several agents to lead the hunt for Burt over the years, said the Bureau has run down hundreds of tips around the world—everything from Burt reportedly being homeless in Denver to working at a Costa Rican resort. But the fugitive has somehow managed to elude capture, leading some to believe he is dead.
'There really was no way of carrying it out responsibly unless you go inside, search room by room and force whoever is there out,' Armstrong said of the building. Armstrong said he 'surveilled' a room with lights on before the explosion was set but found no one.
Retired Special Agent Kent Miller, one of several agents to lead the hunt for Burt over the years, said the Bureau has run down hundreds of tips around the world—everything from Burt reportedly being homeless in Denver to working at a Costa Rican resort. But the fugitive has somehow managed to elude capture, leading some to believe he is dead.