Could a blood test predict whether a person is at risk of committing suicide? For the first time, a set of proteins in the blood have been linked to suicidal behaviour. People who commit suicide appear to share a number of biological traits, regardless of any underlying conditions. This hints that suicidal behaviour may be a distinct disorder. 
Oh, how are we afraid of the unknown. How do we despise the unexplained.
We hate seeing people doing things we do not understand. They MUST have a reason to do it! A reason WE can understand!
Put the unknown into the small little boxes of your brain. Destroy it.