As for Aristomachus, he was tortured at Cenchreae and then thrown into the sea.
Edition :
Plutarch. Plutarch's Lives. with an English Translation by. Bernadotte Perrin. Cambridge, MA. Harvard University Press. London. William Heinemann Ltd. 1926. 11.
Remark :
level: Everyone involved is part of the Achaean League. perpetrator: The perpetrator is unknown. thirdperson: Aratus is reproached for the deed because he didn't prevent it.