KANSAS CITY, Kan. (AP) — Authorities say a person who is believed to have pulled the trigger in the fatal shooting of a Kansas City, Kansas, police captain is in custody.

Police spokesman Tom Tomasic also said Tuesday that authorities think they have all suspects in custody in the officer’s shooting, as well as from an earlier report of shots fired.

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Tomasic says a suspect was taken into custody around 2:04 p.m. about a block away from where 46-year-old Capt. Robert Melton was shot in his patrol car.

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Tomasic says Melton did not respond to the scene of an earlier report of shots fired, but was looking for suspects in an area about 20 blocks away when he pulled up to a person who matched a suspect’s description. He says the man opened fire before Melton could get out of his vehicle.

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Tomasic says he has been told a fourth person that police thought was a suspect might not have been involved.

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