A couple of points:
1. The whistleblower has no legal right to anonymity. I could be wrong about this but I don't think I am.
2. The whistleblower would be at risk for his life if he is exposed. But not from Trump or Trump supports. We want him to testify. The threat is from the other side and they don't pull their punches. Death within 24 hours by suicide would hardly be a surprise.
Can you say "Fort Marcy Park"?