Welcome to our deep dive into the Top 10 most dangerous criminals who were ever locked inside Alcatraz, America's most notorious maximum-security prison nicknamed "The Rock".br br From infamous mobsters to ruthless killers, these inmates were so dangerous they were kept behind the walls of the Rock — where escape was nearly impossible.br br 💬 COMMENT below and let us know what you think!br br ✏️ Vidello Content Guarantee ✏️ br br We guarantee that the work you see on this channel is unique, original and created completely by ourselves in a professional recording studio using Sony Vegas 11, this also includes thumbnail images which are created in Photoshop Elements 11.