Responses
Considering Sinclaire's personality, he likely went back waited for the time to meet Martin so that TL is not messed up. Once they got together, he likely hunted that POS down and wiped the clan off earth except for that one friend of his. I wonder if we get to see him and the human he was in love with..
i know it’s ending but it would’ve been nice to seen flashes of points in sinclairs “rebirth” and what he did differently for confronting the chief and then the story could have them being happy together. also i think sinclair should eventually tell martin about the whole thing, it would be really interesting to see his reaction.