In a trial, which was conducted in an unprecedently fast pace, the supporters were convicted of charges including murdering a policeman and attacks on people and property.
The verdict is seen as part of the harsh crackdown on the supporters of Morse, who was removed by military in past July.
The group is among some 1,200 Muslim Brotherhood supporters on trial, including senior members.
According to a BBC report, a spokesman for the banned Muslim Brotherhood said the verdict came from a "Kangaroo court". One human rights campaigner said judges had become a tool for taking revenge.
The severity of the verdict has sent shock waves across the world.