Kadir

Kadir paired with Nehir and Ibrahim had an elaborate plan to escape the island, Kadir's part of the plan was to reach the Radio tower to call help in from Mainland Turkey and then wait at the lighthouse, he was also tasked with opening Fire Exit 4 for Nehir which we found out he did not complete in the Prologue

He did make it to the Radio tower but didn't make it inside as he was shot multiple times with crossbow bolts and he didn't have anything to remove the padlock on the door

and since he had a lack of Gasoline I'm sure he wasn't able to activate the Radio since he had no way to turn on the Radio