Li chose not to take his meds. Isn’t that intent?
Li was undiagnosed at the time of the killing, so unless you want to force people with no previous criminal record (or even record of general disturbance) to go see medical professionals and get prescriptions, I am not sure where you are going with this.
Anyways, as to justice reform - violent crime gets all the press and attention, but what really have a broad level impact on society at large is white collar crime - and how leniently we deal with that. We also have a justice system that - in the name of equality - inadvertently privileges those who are in power and otherwise have the wherewithals. That's not my notion of justice.