Human Sacrifice in Rome? It never happened that way.

I must respectfully disagree with your interpretation of the Roman religion. The Romans despised the taking of human life as mere sacrifice to gods. Romans did not accept gods that demanded blood. This was one of the things they held against the Carthaginians. A petty commercial people who murdered their first born infants to acquire success in trade was unworthy to exist. This is what caused the Punic Wars.

The Romans were not interested in sacrificing human beings. In fact, they had a ceremony in which straw dolls were thrown into the Tiber as a SYMBOL of offering themselves to the gods. But they did not kill actual people. They only drowned straw dolls.