Etymology of “Twinkie defense” explained by humorist

Hostess bakery is reportedly out of business over union troubles

Political assassination = manslaughter

...Dale Metcalf, a former Merry Prankster who had become a lawyer, told me how he happened to be playing chess with a friend, Steven Scherr, one of White's attorneys. Metcalf had just read Orthomolecular Nutrition by Abram Hoffer. He questioned Scherr about White's diet and learned that, while under stress, White would consume candy bars and soft drinks. Metcalf recommended the book to Scherr, suggesting the author as an expert witness. After all, in his book, Hoffer revealed a personal vendetta against doughnuts, and White had once eaten five doughnuts in a row.

Tres hombres: Milk, Moscone, White

Hoffer didn't testify, but his influence permeated the courtroom. White's defense team presented that bio-chemical explanation of his behavior, blaming it on compulsive gobbling down of sugar-filled junk-food snacks. Psychiatrist Martin Blinder testified that, on the night before the murders, White "just sat there in front of the TV set, binging on Twinkies." Another psychiatrist stated, "If not for the aggravating fact of junk food, the homicides might not have taken place."

In my notebook, I scribbled "Twinkie defense," and wrote about it in my next report. On the 25th anniversary of that double execution, the San Francisco Chronicle reported that, "During the trial, no one but well-known satirist Paul Krassner -- who may have coined the phrase 'Twinkie defense' -- played up that angle." And so it came to pass that a pair of political assassinations was transmuted into voluntary manslaughter...

- Paul Krassner, journalist, comedian, editor, in “The Huffington Post”