My sons just brought his first car 58 plate 1.2 petrol
Has a few problems but has brought it cheaply so hopefully I can get some help on here fixing them
So first one drivers door lock barrel
The key will not turn when in either way I have removed the barrel and have taken a picture of what I have

I'm sure it is missing something anyone know what I need? And why the key wont turn?
Sadly I'd normally remove the passengers and take a look but someone has stripped out the locking bolt in the side of the door... any clue how to solve that?
Cheers guys
