Families of the victims support the website approach, said Palmer, which the force believes could garner tips from a large public audience. Often a small lead, perhaps chatter along the grapevine, could be all that's necessary to re-activate a case, he said.

"Armchair detectives" are encouraged to scroll through the files, he said.

"We're happy to hear from people, as well, if they have any information or leads or theories or anything that comes to light that they may dig up. Any information is good."

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