1: Suitors plan to kill Telemachus on his return, just as Agamemnon's wife and her lover plan to kill him. Another interesting parallel between Odysseus and Agamemnon is that while Odysseus's son Telemachus kills the suitors to end their despotism in his father's palace, Agamemnon's son kills his own mother.
2: I’m not sure what the second questions is but ill answer it if i do know