A man who committed suicide Monday on Long Island was suspected in the shooting that killed a 20-year-old woman and wounded her daughter on a public bus in Washington, D.C., Nassau police said Tuesday.

Javon Steven Foster, 27, was found dead in a car on Fairway Drive in Hempstead at 5:35 p.m. Monday, police said.

Foster, a D.C. resident, was wanted in connection for the Sunday murder of his girlfriend, Selina Brown, and the shooting of his 23-month-old daughter, Kodi.

In a story posted late Monday on its website, NBC/4 Washington reported that Brown's stepfather, Derrick Ferguson, is a D.C. Metro police officer and that Brown's family said she had been trying to break up with Foster.

Brown was shot "multiple" times, according to D.C. Metro police. She died at the scene. Police said the toddler was in stable condition with a gunshot wound and is expected to survive.

The bus driver had what police termed a "non-life-threatening injury" in the shooting, which happened at 5:40 p.m. on Minnesota Avenue, Southeast.

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Police had described Foster as "armed and dangerous," and a $25,000 reward had been offered for his capture. It was not immediately clear why he traveled to Long Island.

With Kevin Deutsch