I don't know if you are serious, but here is what she said: "Why did he run? Y'know, if he wasn't guilty? So, there's got to have been something there, hasn't there?"
In other words, she is saying that his running away is a pointer to some sort of guilt, at least.
The man says: "Your family should stick by you, but up to a point. Err, I think, if it's definitely, if he's definitely done it, then his family's got to turn round and say, well, he's a criminal."
In other words, the man is saying that there are limits to how far the family should stick by NE, and those limits do not extend to continuing to claim his innocence when there is overwhelming evidence to the contrary.