A large group of students and protestors march past the Allegheny County courthouse in Pittsburgh, Monday, March 25, 2019. The group called for justice after former East Pittsburgh police officer Michael Rosfeld, was acquitted on Friday, March 22, 2019 in the homicide trial where he was charged with shooting and killing 17-year-old Antwon Rose II last summer near Pittsburgh. (AP Photo/Keith Srakocic)

Students and protestors march through the streets in Pittsburgh, Monday, March 25, 2019. The group called for justice after former East Pittsburgh police officer Michael Rosfeld, was acquitted on Friday, March 22, 2019 in the homicide trial where he was charged with shooting and killing 17-year-old Antwon Rose II last summer near Pittsburgh. (AP Photo/Keith Srakocic)

A large group of students lead a march from the City-County building before taking to the streets in Pittsburgh, Monday, March 25, 2019. The group called for justice after former East Pittsburgh police officer Michael Rosfeld was acquitted on Friday, March 22, 2019 in the homicide trial where he was charged with shooting and killing 17-year-old Antwon Rose II last summer near Pittsburgh. (AP Photo/Keith Srakocic)

Students and protestors carry a memorial of Antwon Rose II as they march through the streets in Pittsburgh, Monday, March 25, 2019. The group called for justice after former East Pittsburgh police officer Michael Rosfeld, was acquitted on Friday, March 22, 2019 in the homicide trial where he was charged with shooting and killing 17-year-old Antwon Rose II last summer near Pittsburgh. (AP Photo/Keith Srakocic)

Students and protestors carry a memorial of Antwon Rose II as they march through the streets in Pittsburgh, Monday, March 25, 2019. The group called for justice after former East Pittsburgh police officer Michael Rosfeld, was acquitted on Friday, March 22, 2019 in the homicide trial where he was charged with shooting and killing 17-year-old Antwon Rose II last summer near Pittsburgh. (AP Photo/Keith Srakocic)

Students and protestors carry signs as they march through the streets in Pittsburgh, Monday, March 25, 2019. The group called for justice after former East Pittsburgh police officer Michael Rosfeld, was acquitted on Friday, March 22, 2019 in the homicide trial where he was charged with shooting and killing 17-year-old Antwon Rose II last summer near Pittsburgh. (AP Photo/Keith Srakocic)