Were Aristogeiton and Harmodius Tyrannicides?

Because of a love triangle, according to Thucydides, Aristogeiton and Harmonius murdered Peisistratus' son Hipparchus. Actually, the motive Thucydides describes was not just jealousy but insult, since Aristogeiton was the one who was jealous and Harmodius was the one whose sister was insulted by being disqualified from carrying a basket in an Athenian religious festival.

There appears to have been a common view that Hipparchus was tyrant at the time of Aristogeiton and Harmonius' successful conspiracy to murder him at the Great Panathenaea of 514/513 B.C. Aristogeiton and Harmonius were hailed, honored, and glorified posthumously as tyrannicides. This Thucydides dismisses. If, as Thucydides argues, Hippias alone was tyrant at the time, then Aristogeiton and Harmodius were not tyrannicides, at all. Besides, the tyrannicides didn't put an end to the tyranny because Hippias continued in power for another three years.

Read what Aristotle, Thucydides, and Herodotus have to say on the subject: Ancient Sources on the Tyranny and Murder of Hipparchus.

What do you think? Please post in the comments.