I came across this the other day. Some people have mentioned that there have been scenes in which Kenard has looked at Omar without fear, and that for them foreshadowed Kenard's murdering Omar. After reading the interview that Jessie posted below, I saw this video and thought it interesting. Dominic West commented that we will see in the last episode who will be the next Omar, McNulty, etc. I couldn't think of anyone who could be the next Omar, until I saw this. Interesting to see Kenard "playing" Omar.