A 25-year-old man has been arrested in connection with the death of a 27-year old Tucson man, who was shot dead late Saturday at a mobile home park on the northwest side, officials said.
Rafael Ayala Key is suspected of killing Roberto Garcia Milan while Milan was sitting outside his mobile home drinking with two other men around 11:30 p.m., Sgt. Cathryn Masters, a spokeswoman for the Pima County Sheriff’s Department, said in a news release.
Key was with a group of people in a beige Cadillac when he confronted the men, Masters said.
Key is suspected of getting out of the Cadillac and shooting Milan, then speeding off in the car. Milan died at the park, in the 4900 block of North Shannon Road, near West Ruthrauff Road.
Masters said there is no motive at this point, “other than there were words exchanged between the two.”
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Key was arrested for a narcotics charge in 2008 and pleaded guilty to an extreme DUI in 2009, court records show.

