UHP arrests suspect in deadly I-15 shooting


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Utah Highway Patrol investigators have arrested a man in connection with a deadly shooting on a freeway ramp.

A bullet struck and killed a driver in that incident last month. One person is now in jail and investigators expect more arrests.

Sgt. Jeff Nigbur says investigators got a tip late last week and were able to locate Matthew James Day in a Provo motel room. A SWAT team was called out early Saturday morning to make an arrest. Nigbur says Day was arrested without incident.

UHP arrests suspect in deadly I-15 shooting

Investigators say Day was in the vehicle from which shots were fired following an altercation on Jan. 9. It started near 900 South and West Temple. Investigators say gang signs were exchanged between the suspects and the victim.

The altercation continued onto I-15 and ended on the collector near 1700 South when 18-year-old Cesar Ramirez was shot. Jail documents say Day chased the victim's car, cut off another driver, then drove next to Ramirez when the shots were fired. Ramirez died several days after the shooting.

Investigators say it isn't clear right now what Day's role was in the shooting. Jail documents indicate that Day told two people he was the driver. He also reportedly told those people details of the crime that only investigators or witnesses would know.

The day after the shooting, officers in Davis County pulled Day over on a traffic stop. He was in a vehicle matching the description of the suspect's car, but officers let him go because the investigation at that time didn't tie him to the crime.

Investigators don't think the suspect and victim knew each other. "It just looks like they ran into each other, they were throwing gang signs, and it just kind of went off from there," Nigbur said.

Day has a criminal history that includes burglary and drug convictions. Investigators are studying the tattoos on his face and neck to try to figure out what gang he's in.

They say there could be more arrests.

E-mail: mgiauque@ksl.com
E-mail: syi@ksl.com

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Marc Giauque and Sandra Yi

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