Read the bio below and try to give details on sylvester johnson 's: - successor - spouse - predecessor - office - term end - children - term start - name Bio: sylvester m. johnson is a retired american law enforcement officer . he served on the philadelphia police department for forty-three years , including six years as the city 's 13th police commissioner from january 4 , 2002 , until january 7 , 2008 . johnson joined the philadelphia police department in 1964 and was soon assigned to the city 's high patrol . in 1972 johnson was awarded the medal of valor , the police department 's highest award , for stopping the armed robbery of a supermarket in cheltenham , pennsylvania , while off-duty . philadelphia mayor john f. street appointed johnson as police commissioner to succeed outgoing police chief john timony . he took office on january 4 , 2002 . johnson was credited with lowering philadelphia 's murder rate during his first year in office . he also improved some community relations . he retired on january 7 , 2008 .
- successor is charles h. ramsey- spouse is cynthia- predecessor is john timoney- office is commissioner of the philadelphia police department- term end is january 7 , 2008- children is three sons- term start is january 4 , 2002- name is sylvester johnson