What is wrong with starting the lawsuit process against them NOW? Drag Sharpton into court. Jackson, too. They’ve been out making speeches attacking him, a private citizen, and basically calling him guilty of murder.
Make ‘em pay or at least have to pay tons of lawyers to defend their bad behavior.
There’s no fifth amendment right in a civil action, and it cuts both ways. Better to have the criminal case resolved, then go wave it in front of a civil jury.