Deputies in Olmsted County, Minnesota, have arrested a 39-year-old Rochester man after a dog walker found the body of a woman in a ditch in Cascade Township.

According to the sheriff’s office, the dog walker reported on Monday that the dog began pulling toward an embankment of snow, where they saw what appeared to be a person’s arm. Deputies arrived and confirmed the body of a woman in the location and determined the death to be suspicious.

Investigators eventually identified the woman as 41-year-old Kimberly Ann Robinson. An autopsy was completely on Wednesday, and while a final report is some weeks away, deputies said they believe a firearm was “the ultimate cause of death for Ms. Robinson.”

As they continued their investigation, they developed a suspect whose family persuaded him to come in for questioning. At the end of the inteview, however, he declined to make a statement and was arrested. Mustafa Rahshad Bush has been booked on suspicion of second degree murder.

Investigators also obtained three search warrants and executed them, looking for additional evidence.

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