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 July 7th, 2013  
St. Lucie County Sheriff Mascara announces early morning arrest for Saturday's murder of 17-year-old Fort Pierce youth
Less than 12 hours after a 17-year-old Fort Pierce youth was shot to death just north of Fort Pierce, St. Lucie County Sheriff's investigators arrested a 15-year-old north county resident for first-degree premeditated murder and other charges, according to Sheriff Ken J. Mascara.

"Just before 5:30 this morning, St. Lucie County Sheriff's detectives arrested 15-year-old Demetrius Jermaine Osborne, of 2901 Kingsley Drive (just north of Fort Pierce) for murder, aggravated assault with a deadly weapon and unlawful possession of a firearm by a person less than 18 years old," Sheriff Mascara said.

Osborne is being detained without bond at the St. Lucie Regional Juvenile Detention Center, Fort Pierce, a facility operated by the Florida Department of Juvenile Justice.

"Sadly, two teen-age lives are lost in this incident, one to the violence of another, and one, if convicted, will be imprisoned for a long time," Sheriff Mascara said. "These two teen-agers had their whole lives ahead of them. All that changed on Saturday."

Davontae Timmahl Dukes, 17, was shot to death shortly before 6 p.m. Saturday. He and his brother, Jeremiah Dukes, were riding a bicycle on North 35th Street when Osbourne fired gunshots from the back seat of a white Chevrolet Impala, according to detectives. The two fled, and Davontae Dukes fell near North 33rd Street and Avenue N.

Davontae Dukes was treated at the scene by St. Lucie County Fire Rescue paramedics then taken by ambulance to Lawnwood Regional Medical Center and Heart Institute in Fort Pierce where he was pronounced dead at the emergency room.

Deputies obtained a description of the car and stopped it at North 16th Street and Avenue M less than an hour after the shooting. There were three youths in the car but not Osborne. After interviewing the three, detectives obtained a search warrant for Osborne's Kingsley Drive home.

At the home, investigators found Demetrius Osborne and took him to the Sheriff's Office for an interview.

Detectives found a silver and black pistol matching the description they had obtained of the gun used in the shooting. The pistol was found under Osborne's mattress in his bedroom.

Osborne admitted having the gun and being the only person in the car who had a gun. He also admitted rolling down the window of the car and pointing the gun at the Dukes brothers but denied firing his weapon.

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