Nah then you'd just say I'm sorry for what I did or something. But it's probably for legal reasons he doesn't admit to guiltCan't "sorry" be both? Like, if I missed a stop sign and ran into you then my immediate reaction would be "I'm sorry!" with the "it was my fault" being implicit.
But if you wrote that someone else that missed a stop sign and ran into you, then my reaction would probably also be "I'm sorry (to hear that.)"