David Worby’s story begins two years after hijacked planes struck the World Trade Center towers. As tales of 9/11 heroism turned into Ground Zero medical mysteries, the White Plains lawyer started an odyssey of court battles, media frenzy and funerals. At the time, cancers and rare diseases mounted among firefighters, police and others who spent months cleaning up Ground Zero, but authorities still disagreed with Worby’s theory that working at the site made them sick. “Our people were wearing, at best, hospital masks of paper, so tens of thousands of people are sick as a result of the way this was handled,” Worby said during a recent interview. “It’s tragic, and it’s sad that more people are sick and dying from this than died on that actual date.” Since 9/11, the ranks of …