New Orleans police arrested a suspect accused of killing a 5-year-old at a birthday party last year.
Officers say 19-year-old Tyron Harden is one of three shooters who opened fire on Simon Bolivar Avenue last May.
Briana Allen, 5, and Shawanna Pierce, 33, died.
A 10-year-old and two men were injured.
The N.O.P.D. arrested Harden Monday in New Orleans East.