He killed Damastes, surnamed Procrustes, by compelling him to make his own body fit his bed, as he had been wont to do with those of strangers. And he did this in imitation of Heracles. For that hero punished those who offered him violence in the manner in which they had plotted to serve him.
What did Procrustes do?
According to Greek mythology, Procrustes was a robber who killed his victims in a most cruel and unusual way. He made them lie on an iron bed and would force them to fit the bed by cutting off the parts that hung off the ends or by stretching those people who were too short.
Did Theseus kill Procrustes?
Ultimately Procrustes was slain by his own method by the young Attic hero Theseus, who as a young man slayed robbers and monsters whom he encountered while traveling from Trozen to Athens.