I am not convinced that these gun massacres that happen regularly in USA are due to the 'inexplicable madness of a lone gunman'.
Switzerland has a high incidence of gun ownership amongst their population and do not experience such 'rampages'.
Number of guns per capita by country - Wikipedia, the free encyclopedia
What makes USA vulnerable to these gun rampages is the CIA's active programme producing Manchurian candidates to act out these massacres for the purposes of pressurising the population to accept gun control legislation.
Mass deaths are a tragedy.
Do not assume that the cause the media uses to 'explain' the deaths is neccessarily the whole truth.
CIA creating real life Manchurian Candidates? ? RT