He graduated magna cum laude from Hamilton College (New York) in 1967 with a bachelor's degree[1] in Philosophy and Religion.
The 2.8 acre People's Park was, in 1969, in the midst of a stalled redevelopment plan, littered with debris and abandoned cars.
[2] During a rally on Sproul Plaza on that day, May 15, 1969, Siegel received the microphone as the crowd of 3,000 agitated to reclaim what was perceived as their community space, when he yelled "Take the park!"
[7] In recent years, he has won a series of high-profile sexual harassment and employment discrimination lawsuits,[specify] and has represented clients such as the National Union of Healthcare Workers.
Siegel, a long-time friend of Oakland Mayor Jean Quan, served as her Legal Adviser until November 14, 2011, when he resigned in protest of her decision to clear protestors associated with Occupy Wall Street from their camp at Frank H. Ogawa Plaza.
"[9][10] In 2011, Matthai Kurivila of San Francisco Chronicle described Siegel as "one of Oakland's most active and vocal police critics".