Tech entrepreneur Adam Malamis was well-known in London’s business and charitable sectors. He had been on the Chamber of Commerce board and recognized as a “Top 20 under 40” by London Inc. magazine. His web-development firm, Simalam, caters to non-profits and government agencies and he helped launch a nationwide volunteer snow-shovelling network described as “an experiment in kindness.”

It’s often the ones courting attention and praise that turn out to be the biggest bastards.