[jcrawfordor]

The quality of the fingerprints in the image mentioned is amazingly good, not so much worse than what's produced by proper fingerprint capture devices. The FBI operates a database of fingerprint images (IAFIS) and his fingerprints were taken when he was arrested prior to this incidents and submitted to the FBI (standard practice by nearly all law enforcement agencies). IAFIS includes an automatic matching system which allows you to submit fingerprint images and receive a list of possible matches, and this is also standard practice in criminal investigations (as well as often used for background checks).

So really, nothing about this is suspicious at all, it's completely standard law enforcement practice to obtain fingerprints in any way possible and submit them to the FBI for matching, and then run down any possible matches. Your local police department does this for car breakins if they can spare the resources (not too unusual to get good latent prints off the windows, but it is unusual for police department to spend the time/money). The only odd thing here is LE's fortune, and the accused's misfortune, of images having been uploaded with such clear capture of the fingerprints.