I always ignored this thread for ages, having seen the documentary on TV.... I have been a bit divided. Some it may seem are purely accidental.
There were some cases which just didn t add up, like the guy who walked all different routes in the snow.
Then there was the Asian guys who got kicked out of a club and was seen on footage with a stranger.
The last suspicious was the one where the only son spoke to his parents before screaming was heard over the phone.
How some victims had valuables missing, I think indicates a possible use of an app/phone communication as evidence. If there was a serial killer(s), how did he/they lure folk down by the waterside.
I think there may be more than one person, I mean Fred West didn t act alone. Ian Brady had the help of Marie Hindley so to say a serial killer could act alone is a bit absurd. There has been plenty of evidence of people helping and covering up for others in the past. If there is someone up to no good, they must be well convincing charmers and the possibility of gay tendencies. The lack of evidence to suggest violence or drugging only makes the whole thing more confusing.