1935, when the fbi surrounded the lake house, with warrants for the arrest of gangsters ma barker and her son fred>> this is the original fbi picture. >> wait a minute. wait a minute. that's this lamp? >> that's the same lamp, yes. >> and that's that lamp. >> right. >> that's the table that's here. that's still there. oh, my goodness. >> right. >> and it's an exact match. >> right. >> now, what the heck were two infamous gangsters doing in carson's great- grandfather's lake house? we'll get to that. but first, a little gangster history. >> the 1920s and '30s becomes known as the "gangster era" in america. >> mob historian and author scott deitche. >> you of course had the great depression. you also had prohibition, so you had kind of this perfect storm of socioeconomic factors that led to this sudden increase in violent crime. >> bank robberies, kidnappings, and murders are causing havoc around the country, with big-name criminals grabbing headlines. >> you had machine gun kelly, "pretty boy" floyd, john dillinger, bonnie and clyde. they had these catchy names that people gravitated towards. >> an