Good Friday is the holiest of holidays on the Christian calendar. This day over 2 millenia ago, Jesus called the Christ, came down to earth and at the apporximate age of thirty-three paid the ultimate price for our sins by dying on the cross for the sins of all mankind. While He died for all the sins of mankind, He paid a higher price than the death on the cross. The ultimate price was not the death on the cross, but when God the Father turned His back on His Son because He saw my sins and yours on His Son and He, God the Father, cannot look on sin. This came to light for me many years after I became a Christian and turned my life over to Him as I pondered the Scripture "My God, My God, why have you forsaken Me?" God the Father forsook God the Son; that above all else must have torn at the heart of Jesus.
Let us take a look at the Easter Rising of 1916 on Good Friday:
In the early hours of 21 April 1916, Good Friday - three days before the rising began, a German U-boat landed on Banna Strand dropping off Roger Casement, Daniel Julian Bailey, and Robert Monteith. Roger Caement was discovered and arrested on charges of treason, sabotage, and espionage against the Crown. He was taken straight to the Tower of London where he was imprisoned, but not before he was able to send word to Dublin about the inadequate German assistance.
Michael Collins had sent a car to pick up the "Casement Brigade". However, on the way they drove off the road into the River Laune, where they drowned.
Austin Stack will not go into a Police station and ask. (Probably due to the fact that the police were an arm of the British Administration.)