To show that the LORD JESUS CHRIST is the Heifer that is to be sacrificed and He took away the guilt of Pontius Pilate but was sent to hell.
Are we innocent of the blood of JESUS?
No. The blood was shed for our own remission of sins
Hebrews 9:22 (Amplified Bible)
[In fact] under the Law almost everything is purified by means of blood, and without the shedding of blood there is neither release from sin and its guilt