BALTIMORE — A man already serving life in prison for the 2007 murder of a Baltimore City Police detective has been charged for trying to get released from prison under false pretenses.

In February 2018, Brandon Grimes, 40, began developing a scheme to get his conviction overturned.

Prosecutors say Grimes and at least two other people created fake ballistics documents as evidence.

The phony documents suggested Grimes didn't shoot Detective Troy Chesley because both were wounded by the same gun.

Charging documents detail several jail calls Grimes made with his co-conspirators hashing out the plan.

During these conversations, Grimes made mention of past cases in which alleged criminals were let off the hook over questionable ballistics evidence.

One such instance involved a former Balt

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