Is it possible to say this sentence in such a context?

“In anger I forgot myself, but even if I had forgotten myself totally I would never have killed him. ”
I make this sentence.
Hi, dear teachers, can this sentence be said in such context?

The speaker is having a heated quarrel with another guy. That guy has said something that makes the speaker so angry that the speaker lashes out at him. Unexpectedly, the speaker has hit the vital part and accidentally killed that guy.
Afterwards when he is interrogated by the police, he says “In anger I forgot myself, but even if I had forgotten myself totally I would never have killed him.”

Is it possible?
Thank you for any of your help.