title: Recent mass murders in the United States are guns and mental illness.
authors: Stephen J
authors: SJ
authors: O'Connor
mesh_terms: D005389:Firearms / Q000331:legislation & jurisprudence / Q000706:statistics & numerical data*; D006297:Health Services Accessibility / Q000191:economics / Q000331:legislation & jurisprudence / Q000592:standards*; D006708:Homicide / Q000517:prevention & control / Q000523:psychology / Q000706:statistics & numerical data*; D006801:Humans; D001523:Mental Disorders / Q000453:epidemiology* / Q000523:psychology; D008605:Mental Health Services / Q000191:economics / Q000331:legislation & jurisprudence / Q000592:standards*; D014481:United States