Doing my own digging on the side

What Kade doesn't say is that it also means my sister's Boyfriend is from Sinclair family or at the very least, they know him. 'I want to make sure that Jack is connected to this family', I said deep in my thoughts. 'You mean, before targeting them?', he interpreted my statement. I shrugged nonchalantly. A million thoughts are circulating my mind. ' how to make sure?', I projected my doubt. He was quiet for such a long time, I thought he didn't hear. I opened my mouth to repeat but he interrupted by saying, 'we can't say. The only way I see right now is to dig the dirt on this family. To search the skeletons in their closet. And pray that one of these leads to Jack. And even then, if we catch him, it's not like he will be the murderer. We are doing guesswork here Erica. A hell of a lot of guesswork.' I started pacing, 'let me get this straight, A) we are not sure Jack is related to Sinclair family. B) if he is related and we find out who is Jack, what then? it's not l