21 News has learned the man found dead in Youngstown's third homicide in four days was a prominent anti-violence activist in the Valley.

The man, identified as William "Shimmie" Miller was found dead in a car near the intersection of Steel Street and Salt Springs Road.

Miller is a known activist and mentor in the Valley who made it a point to change the mindsets of youths in the Valley in order to curb the violence in the area.

In the past, Miller has had troubles with the law himself, but turned his life around and decided to work with the city as a mentor to teach the youth how to avoid the path of violence.

This is Youngstown's second homicide in two days and the third since Sunday.

Tuesday night, a 19-year-old man was found in a driveway in the 500 block of E Judson Avenue with a gunshot wound. He died at the hospital overnight. The coroner has identified the deceased as Zariyan Dothard.

Police arrested a 17-year-old suspect in connection to that case.

On Sunday night, 131 shots rang out at the corner of Glenwood and Sherwood Avenues. Police investigating the shooting found an SUV with a victim inside.

The victim of Sunday's shooting has been identified as 18-year-old Te'nya McKinley who police say was an innocent bystander.