Originally Posted by DontRunMeOver

They were all in and around Ipswich, so it seems pretty logical to connect them because its not a huge place (didn't know it had a red-light district and it must be running pretty low now...)

Having said that, Ipswich is just down the motorway from East London, so in theory the guy could be from London and could have killed plenty of prostitutes there already and not have been noticed because it would be much harder to trace in London.