Head found in Edmonton alley   Play video Decapitated murder victim ID'd: reports Head belongs to corpse found days earlier: ME Head belongs to corpse found days earlier: ME Human head found in cardboard box Human head found in cardboard box

EDMONTON — Police say four men with ties to the White Boy Posse gang face first-degree murder charges in three separate homicides in eastern Alberta and Saskatoon, including a decapitation case and another in which a woman was shot to death after answering her door to strangers.

"These suspects are behind bars due to the collective efforts of all of the police agencies involved in these investigations. We speak with one voice when we say that violence like this will not be tolerated," RCMP Insp. Jerry Scott said Tuesday.

"Those who choose to engage in this type of criminal behaviour here in Alberta or elsewhere should know that there will be consequences. We can and will track you down."

The suspects were arrested in Alberta.