Well her charges indicate that she thinks that they intentionally killed him.
Not so strange if a jury is allowed to consider lesser charges. If not, then she’s done them a favor in the long run as without direct and corroborating testimony, they’ll never find them guilty of first degree murder — or whatever the top murder charge is in Maryland.
I’m surprised nobody mentioned the DA’s screw up: “they illegally arrested Mr. Gray”. I don’t think there is such a crime.