Degwin Zabi is one of many killed by the Solar Ray's firing on the Federation fleet, though it takes a whole week to confirm it.
Lalah Sune's demise on the wrong end of Amuro's beam saber happens to be the most famous, and the ripple effects go all the way up to Char's Counterattack.
My God, What Have I Done?: Naturally upon killing Lalah, a heartbroken Amuro is left sobbing about having "done something [he] can never make right."
Signature Scene: Lalah's death, not only because it's a dramatic moment or it being the first instance in the franchise, but because it horribly effects both Amuro and Char all the way up to the year 0093.
Taking the Bullet: Amuro almost puts his beam saber through Char's Gelgoog - then the Elmeth gets in the way.
Wham Episode: Degwin finally agrees to peace talks with General Revil, heading out in his personal flagship to meet the Feddie brass. Then Gihren turns the Solar Ray on all of them.
