Oh, they're not saying he's innocent. They're going to declare him incompetent to stand trial indefinitely until they just term him out of the psych facility.
No. That is the daughter of the guy they killed. Where ever there is a racial murder, the DOJ sends in a special division called the Community Relations Service. They set the temperature of how the crime will be handled from a "community relations" perspective. For white families, this entails arranging for a family member to make a public announcement disavowing racism. Presumably they are told that it is their responsibility to do so in order to prevent "extremist violence".