Don't believe everything Capeci and Mustain tell you , especially when they are the words of a low life drug addict who was saying what he was saying to save his own ass and make everyone else involved look worse and himself look like an angel . Lastly Roy , and his crew for the most part were pretty boys/ladies men not to mention Roy was very careful so I'd guarantee they showered after a kill let alone washed their hands . The three ( Mustain, Capeci, Montiglio) of them told enough tall tales theres no need for you to make up your own . I highly doubt not to mention never read or heard from people who were around them that they sat and ate with blood all over their hands which makes sense being there was really nowhere to hide other than the bathroom in that apartment if someone came to the door ie pizza man , cops, neighbor . They were smarter than that , which is why they never got caught while Roy was running things .