[Batman steps on Superman's throat and raises his Kryptonite spike to kill him] [Straining]

You're– letting him– k-kill Martha–

[Shocked] [Lowers spear]

What does that mean? Why did you say that name?

[Choking]

Find– him– S-save– M-Martha–

[Brief flashback to the death of Bruce's parents]

WHY DID YOU SAY THAT NAME?! MARTHA?! WHY DID YOU SAY THAT NAME?!

[Runs towards them both]

Clark! Stop! Please! Stop!

WHY DID YOU SAY THAT NAME?!

It's his mother's name! It's his mother's name.