In the aftermath of the shooting, Reverend Harry Williams took to the streets for answers.  He spoke to both drug users and drug traffickers about the madness that had engulfed the community.  What he found shifted his focus as a minister.   The emphasis of his work came to involve the incarcerated and those returning to the society.  He mentored gang involved youth and foster children.  Williams’ founded a ministry to human trafficking victims.  He became a board member for Homies Empowerment, a community based outreach to gang involved youth. As part of his street ministry, Harry Williams wrote 8 books.  His novel, "Straight Outta East Oakland" became a hood classic.


OG Rev first became exposed to hip-hop in the late 1970s in New York City.  In the 1980s, he became a recording artist under the name Incredible Mr. Freeze.  Hip hop has become the foundational element of Ground Game Ministries.  Williams once said, “It is impossible to introduce change in the hood while standing outside of the culture.   To be considered relevant and credible you must have a consistent presence on the block and the ability to speak in a language that is well understood in the streets.”  

In recent years, OG Rev has recorded and performed in videos with Grammy nominated artist, Mistah FAB as well as Sadat X of Brand Nubian.  The City of Oakland presented him with a mini-grant to create a hip-hop video called, “Everybody Wants To Be A Gangster.”  

In February of 2023, the founder of Ground Game Ministries was presented with a citation from the City of Oakland City Council for his violence reduction efforts in the city.  This was his second such award.