The plea deal for voluntary manslaughter was rejected by a judge Friday.
The activists have five demands, which call for transparency and a new department administration, among other things.
County Executive Angela Alsobrooks announced the changes at a Friday press conference.
Preliminarily, police do not believe that this is a random shooting.
Gatherings are now restricted to 50 people maximum.
State police arrested the officer Sunday.
The council discussed sending letters to the county officials requesting they reevaluate their policies.
Officers found a woman lying unresponsive on a bed Sunday morning.
The task force will review the department’s operations, including hiring, training and use of force policies.
The announcement comes one day after former chief Hank Stawinski resigned.