The killings sparked a number of legal and legislative actions that were precursors to the Violent Crime Control and Law Enforcement Act, H.R.

"[2] P&M had redirected him to alternative legal counsel about some real estate deals in the Midwest in 1981, and had no contact with him in the 12 years since they could not advise him on matters out of state.

[5] Ferri claimed he had been poisoned by monosodium glutamate (MSG), a flavor enhancer in food, and that he had been "raped" by Pettit & Martin and other firms.

The letter also contained complaints against the Food and Drug Administration, the legal profession, and a list of over 30 "criminals, rapists, racketeeres [sic], lobbyists", none of whom were among his actual victims.

[10] A number of organizations were formed in the wake of the shootings, including Legal Community Against Violence,[11] which acts as a resource for information on federal, state, and local firearms policies.

The American Jewish Congress founded the Jack Berman Advocacy Center[12] to lobby and organize with regard to gun control and violence reduction.