We know what the shortcomings are: MONEY. This issue needs money not a study. The problem has been identified: Reagan kicked the mentally ill to the curb back in the eighties. From there they struggled with their demons and the cruelties of life on the streets without proper medication and therapies. On the streets they become law enforcement's problem and private prisons' meal ticket. Apportion a fraction of our ridiculously bloated defense budget to care for some of our most vulnerable and in some cases most dangerous citizens. Gun fanatics like to argue that gun violence in America is due to mental illness not guns. Now that everyone is on the same page regarding mental illness and public safety this should be a no brainier (right up congress' alley).