It’s become a health hazard to be a banker. What evil lurks beneath the pile of bodies?In growing numbers, the bodies of bankers are piling up in the streets — at least eight global financial types in recent weeks (and five others in the past year). And a financial reporter for The Wall Street Journal walked out of his house and mysteriously hasn’t been seen or heard from in weeks.So what gives? Three of the bankers worked for JPMorgan. One worked for Deutsche Bank AG. Others for companies not so prominent, i.e., not “too big to fail,” but possibly...