Trayvon Martin , 17 , was shot dead 1 month ago in Sanford , Florida . Across the country , many are demanding the man who shot him be arrested . Score: 6 Rallies are held nationwide , from San Francisco to Atlanta .
Trayvon Martin , 17 , was shot dead 1 month ago in Sanford , Florida . Across the country , many are demanding the man who shot him be arrested . Martin 's parents attended three events Monday in central Florida . Rallies are held nationwide , from San Francisco to Atlanta .