TOWSON, Md. (AP) — The Latest on the killing of a Maryland police officer (all times local):

2:15 p.m.

Two of the three teens most recently charged with first-degree murder in the death of a Baltimore County police officer have been ordered held without bail.

Fifteen-year-old Darrell Jaymar Ward and 16-year-old Derrick Eugene Matthews waived their right to appear in court Wednesday, and Judge Barbara Jung ordered them jailed at an adult lock up.

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Jung said she didn't believe a juvenile facility was appropriate considering the murder charges they face in the death of officer Amy Caprio.

Seventeen-year-old Eugene Robert Genius IV appeared through video and requested a postponement because his lawyer couldn't attend Wednesday. The judge agreed.

A fourth suspect, 16-year-old Dawnta Anthony Harris, is also charged with first-degree murder and is being held without bond. The Associated Press does not ordinarily identify underage suspects unless they face adult charges, as all four teens do in this case.

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11 a.m.

A prominent Baltimore defense attorney says he and another well-known attorney will represent the 16-year-old suspect charged with first-degree murder in the death of a young female police officer.

Attorney J. Wyndal Gordon said Wednesday he will join with lawyer Warren Brown to represent Dawnta Anthony Harris. He says they won't allow the teen suspect to be "sacrificed to the system without due process and zealous advocacy."

Authorities say Harris fatally struck officer Amy Caprio with a stolen Jeep.

On Tuesday, Harris was represented by a public defender at his initial court appearance.

Gordon made headlines earlier this year representing a mentally ill woman left outside a Baltimore hospital wearing only a patient gown and slippers on a freezing night.

Co-counsel Brown is a longtime Baltimore defense attorney.

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10:40 a.m.

Court documents say a teenager accused of fatally striking a Baltimore County police officer with a stolen Jeep identified the three other teens now facing charges in her death.

Probable cause statements obtained by The Associated Press on Wednesday say 16-year-old Dawnta Anthony Harris told a detective he was waiting in a black Jeep while the three other teens committed a burglary earlier this week in Perry Hall.

Fifteen-year-old Darrell Jaymar Ward, 16-year-old Derrick Eugene Matthews, and 17-year-old Eugene Robert Genius IV are charged as adults with first-degree burglary and first-degree murder in the killing of officer Amy Caprio.

Court records don't list defense attorneys. Attempts to reach people believed to be relatives of the teens were not successful.

Probable cause statements say Matthews and Ward admitting to committing the burglary. Another says Genius at first declined to give a statement but later objected to being charged with murder, saying he was in the house when the killing occurred.

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8:55 a.m.

Authorities say three more teens have been charged as adults with first-degree murder in the death of a Maryland police officer.

Baltimore County State's Attorney Scott Shellenberger says 15-year-old Darrell Jaymar Ward, 16-year-old Derrick Eugene Matthews, and 17-year-old Eugene Robert Genius IV are charged in the killing of Officer Amy Caprio.

The three were scheduled to appear at bail hearings Wednesday.

A fourth suspect, 16-year-old Dawnta Anthony Harris, is also charged with first-degree murder and is being held without bond. The Associated Press does not ordinarily identify underage suspects unless they face adult charges.

Authorities say Caprio was run down by a stolen Jeep on Monday after responding to a report of a suspicious vehicle.

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11 p.m.

A 16-year-old charged with first-degree murder in the death of a Maryland police officer has been ordered held without bail by a judge who called him a "one-man crime wave."

Authorities say Dawnta Anthony Harris was supposed to be on house arrest when he ran down Baltimore County police Officer Amy Caprio with a Jeep earlier this week.

A local prosecutor says authorities also anticipate bringing felony murder charges against three other teens who police say were burglarizing a nearby home while Harris waited in the car.

The teens were taken into custody Tuesday. A police spokeswoman said she expects an announcement about their charges on Wednesday.