E fits looking like someone isn't usually enough to make people call the police. It would usually take odd behaviour etc added to the photo fit before people make the connection.
I mean, would you call the police on a colleague friend or relative based on a similarity to an efit, and know that if they are innocent you could be damaging their reputation and career? I know I couldn't.
Take the recent case of the disappearance of Hannah Graham in the U.S. The man in jail charged with her abduction is facing trial for a rape and attempted murder that took place in 2005. He has also been linked to another murder but not charged yet. The 2005 victim made an e fit, and it has been reported that past colleagues and friends of the perpetrator would joke that he looked like the e fit. But none of them called it in because he was seen as a friendly giant who was a bit stupid but mostly a good guy!
As for the 6 year old, we tell our kids not to talk to strangers, but this man was in her house at night and said he was a friend of her mothers. Well, I don't think my almost 6 year old would even think that someone could break into our house, why would she? So hes in her house equals mummy must have let him in. Plus he said about not waking mummy, I tell our kids to be quiet on a sunday to not wake daddy...a common conversation in most houses I would guess.
The series has me on edge much more and I find it really difficult to watch. Rose still being alive gives me hope that she might escape. I guess he hasn't killed her because he hasn't been able to stalk her and write about her and fantasize about it all first. Maybe that says something about him. He isn't killing them because he likes the killing bit, more because he likes the "chase" and the build up, and in the end they have to die so he can then do what he wants to, but the killing of them is merely a way to facilitate that rather than the over all goal. If that even makes sense.