Il burattinaio

An unexpected event during a robbery in a jewelry store causes the death of a clerk, killed by one of the bandits. The murderer is so shaken by what happened that, shortly afterwards, he commits suicide. Nick and Marvin, thanks to a fragment of skin left under the nails of the first victim, correlate the two events and begin to wonder why a criminal can feel so much remorse. And above all, what could have led someone who, until a few years earlier, had been a great tennis player onto the path of crime...