Pittsburgh Police responded to a 9-1-1 call around 1 a.m. on October 31 for the 3100 block of Bergman Street.
When Zone 6 officers arrived, they located an adult female and child that were sprayed with lighter fluid by a known male.
Medics evaluated the juvenile and woman on scene. One victim complained of eye irritation, and there was no fire.
The suspect was located a short time later and taken to the Allegheny County Jail.