Apart from the social media (Facebook/Twitter/etc.) ramifications, this
story evokes another risk: the risk of relying without question on "expert"
DNA analysis to prove innocence (or guilt).
Some time ago the public radio program "This American Life" featured an
in-depth story which delved anecdotally into the ins and outs of analyzing
DNA data; it raised some skepticism, at least in my mind, about the accuracy
and reliability of the resulting evidence presented in courtrooms.
This is , to be sure, a journalistic issue at least as much as a legal one.