Prominent Democratic donor and LGBTQ political activist Ed Buck was arrested Tuesday and charged with operating a drug house, with prosecutors calling him a violent sexual predator who preys on men struggling with addiction and homelessness. Buck was charged with one count each of battery causing serious injury, administering methamphetamine and maintaining a drug house, according to the Los Angeles County district attorney’s office. Buck is accused of injecting a 37-year-old man, who overdosed but survived, with methamphetamine on Sept. 11. That latest incident comes after two men were found dead in his Laurel Avenue apartment in Hollywood. In both...