That woman just lost her son both spiritually and physically. This child she loved became an "evil" she cannot comprehend and she cannot reconcile her memories of the child she knew, this person she loved unconditionally, with what happened.
I understand why most folks cannot find compassion for her plight; however (for me) she is not the shooter and I know her grief is massive. That she's able to string words together that make sense in English through this wall of grief is surprising.