And she is dead on target that the elimination of treatment centers for mental health (aka "insane asylums") is the root cause of tragedies like the Newtown massacre -- not inanimate objects like guns.
While that is true, there is another side to committing people to mental institutions. Some people shouldn't be there and become imprisoned by the drugs they give them. I recommend a book entitled The Dark Threads by Jean Davison.
The true story of how a bright teenager was transformed into a zombie thanks to a cocktail of drugs and electric shock treatment for an illness she never had. Jean Davison lost years of her life when doctors misdiagnosed her mental state as chronic schizophrenia. Sucked into the psychiatric system, she eventually lost her job, her boyfriends and all self-esteem. But eventually she managed to break free. Told with humour and insight, using extracts from her medical case notes, Jean's memoir raises disturbing questions about psychiatric treatment in the sixites and seventies, which are still relevant today.
It's somewhat like the death penalty issue; you would never want to sentence to death an innocent person.