Lawyers for Porter argued in March that making him testify would violate his Fifth Amendment right.
Backstory: Six police officers in Baltimore, Maryland were charged in the death of Gray, who fell into a coma while riding in a police van on April 12. Porter, the driver, got the heaviest charge, second-degree depraved heart murder, and was tried first. But that ended in a hung jury in December.
The prosecutors in the other trials really wanted him as a witness, but his lawyers worried this could undermine the defense at his retrial. Nonetheless, prosecutors had been willing to give him limited immunity for his testimony.
Porter is expected to be a witness in the trials against Sgt. Alicia White, Officer Caesar Goodson, Lt. Brian Rice, Officer Edward Nero, and Officer Garrett Miller. He faces the retrial in June.
[h/t ABC News]
[image of Porter via WBAL screengrab]
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