Ok i know this is gonna sound kinda crazy and random but i think that randy is "the commander" from chapter one. It would be to easy to assume that it is someone michelle just met. And knowing k.c. Style of thinking that would be to simple. In the beginning we get a hint that he is smart because he is in formation like he remembers things(maybe he has like a commanding ability). And all saul did was hit the commander, not shoot him. When randy attacks saul's mom the only one that sees him is michelle. Saul and angle aren't there. Also when angle kept asking how michelle escaped the water works michelle got very defensive!! Well this is just my guess (feeling) and i just wanna put it out there! -thanks