DENVER (AP) -- Police are investigating the deaths of four shooting victims found in northeast Denver alleys over the past four weeks, all within a 4-mile radius.
Arrests have been made in two of the killings, in each case a single suspect. Police spokesman Sonny Jackson says each killing is being looked at individually, and then police will look at the group.
Jackson says he doesn't believe the public at large is at risk. Police say the two suspects and at least two of the victims have previous arrests on drug charges.
The first two victims were found Nov. 18 and 19. The other two were found Sunday.
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