Bill Maher apparently doesn’t subscribe to the philosophy “never speak evil of the dead.” On Friday night’s “Real Time,” he said he’s “glad” billionaire conservative David Koch is dead, and he hopes “the end was painful.” Maher’s harsh comments come following the Thursday death Koch, who had spent most of his life financing conservative causes, like climate change denial, a hot topic around the world this week as the rain forest in Brazil spreads. “Yesterday David Koch, of the zillionaire Koch brothers, died of prostate cancer. I guess I’m going to have to re-evaluate my low opinion of prostate cancer,”...