Tennessee Grill.  Sunset District, San Francisco.

Losing a child is one of the most difficult things that could happen to a parent.  Finding out that one’s child was murdered unjustifiably by the very people who have sworn to serve and protect the community is unthinkable for most.  For San Francisco’s Gwen Woods and Elvira and Refugio Nieto, it is a cold reality.  Both of their young sons were gunned down in a barrage of bullets by the San Francisco Police Department. City College criminal justice student Alex Nieto was sitting in Bernal Hill Park near the house he grew up in.  He was eating a burrito before …