Yes, but it's still not a "tit for tat" situation. It used to be that capital punishment was the consequence for a lot of the more severe penalties. As time went one, we eventually decided that only a handful of really terrible crimes deserve capital punishment, with murder being the primary one (it's still possible to be killed for high treason, and IIRC aggravated sexual assault may not be explicitly beyond execution today).
The fact that we've left murder as one of the only crimes severe enough for "the ultimate punishment" doesn't mean we're engaged in retaliatory "eye for eye" behavior. It is reasonable to note that murder may be both the most severe crime and the most severe punishment available, and so if we believe in degrees of crime and degrees of punishment at all, these two may match up.