Was Jesus Stabbed Before or After He Died?
The spear came after death, not before. John's account centers on fulfilled Scripture and a testimony given so that readers may believe, not on the mechanics of the wound.
Greater Sin: Jesus' Words to Pilate in John 19:11
Jesus tells Pilate that his authority was given from above, so his guilt is real, yet the one who handed Jesus over has greater sin. The Bible speaks of greater and lesser guilt, and no lesser sin is safe.