First we need to know if there was any connection between the victims.
I'm trying to find a link between the two victims.
But if when he killed again, he'd know they'd see the connections between victims.
That was the first link we had between the victims.
There also seem to be connections between the various four victims.
It wasn't a connection between the three victims, a common factor.
They should have put themselves between the perpetrators and the victims.
The police say they have found no connection between the victims other than hunting.
There was a great deal of contact between the victims and the killers.
Investigators said that so far they had found no connection between him and the victims.