In the Silmarillion the news from Formenos is brought by nameless 'messengers', but Tolkien wrote a more detailed account in HoME which specifies that it was indeed Maedhros and his brothers who arrived. (And he includes the detail that at first Maedhros didn't notice his father was there when he began speaking to Manwë.)
You may notice a certain resigned tone in Manwë's response. :)
Psst - Vairë: Of course Nienna can sympathise. It's her job.
Part 192: I'm calling it
Next time: Part 193: Time of death
Chibis by tektek.org