Oliver didn't plan for Anna to find the body. She ruined his entire plan. His blood started boiling from anger. That's when he decided it was time. He gripped the object in his pocket and it was time for action.
Oliver stood over the body while Anna and Bryce were hysterically yelling at him to run with them. Oliver slowly starts walking towards them, but Bryce noticed something in his hand...and told Anna "RUNNN!!!!"
They kept running until they found an old shed. Turns out it was locked, so they sat behind it. It started to getting brighter outside and Bryce decided he was gonna go try and get the knife out of Oliver's hand.
They could start to hear Oliver calling out for them and Bryce told Anna to calm down and he left to go find Oliver. Oliver kept calling out for Bryce. Louder and louder, until Bryce found him.
Bryce jumped on top of Oliver from behind so he wouldn't expect it. That's when they started fighting like lions on a battlefield. They kept tossing and turning, throwing punches left and right and eventually Oliver pinned Bryce down and stabbed him in the arm.
Trying to fight the pain Bryce yelled at Anna to run. That caught Oliver off guard and Bryce was able to knock him down unconscious.