The prime suspect in a Davenport killing is on the run. A nationwide alert has been issued for 26-year-old Aki Ross. He is charged with first-degree murder in the shooting death Tuesday of 18-year-old Joevante Howard of Davenport. Cops are also looking for Robert Barnes. They say he’s a person of interest.

Officers say Howard and some friends were walking in the central city when they got involved in an argument with another group of people. After the dispute ended, the second group reportedly went into a nearby house.

One or more people came back outside with a gun and began firing at the first group. Howard was hit and died a few hours later. Police say Ross has ties to Chicago and Indiana and may have fled the area.

By Phil Roberts, Davenport