People who believe in the Bible, if King Herod ordered killing of babies, can he be in Heaven?

If he ended up believing Jesus and trusting in the Atonement that Jesus secured on the cross then yeah he could have been justly forgiven his sins including the killing of those innocents and could be granted eternity in paradise with the LORD Jesus...

There is only one unforgivable sin revealed by Jesus in the Bible and murder was not it..