Jeffrey Klein, an investigative journalist who co-founded the muckraking magazine Mother Jones and served as its editor in chief in the 1990s, directing investigations into corporate skulduggery, political corruption and the bonds between big business and elected officials, died March 13 at his home in Menlo Park, California. He was 77.
The cause was complications from an advanced nerve disease, said his sons Jacob and Jonah. Mr. Klein had been diagnosed about 15 years ago with progressive familial neuropathy, they said.
