Helena police arrested a 23-year-old woman on suspicion of trying to kill someone following a disturbance late Sunday. Officers responded to a residence in the 100 block of Edwards Street just before midnight and found a man with “possibly life-threatening injuries,” and a woman covered in blood with no visible wounds. The man was taken to Benefis Hospital in Great Falls, the press release said. Cheyenne Rae Dawn Petersen is facing charges of attempted deliberate homicide and assault with a weapon. This is an ongoing investigation, Helena Police Chief Brett Petty said in the press release.
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