Plot summary
The school shooting was committed by someone connected to Nero's cousin, who had been given a number of KG-9's. Jax contacts the Irish, wishing to get out of the gun business, but the Irish are resistant to the idea. Toric offers Clay help with the murder charge, in exchange for information about SAMCRO. When Clay refuses, Toric forges Clay's signature on a plea agreement. Nero's cousin, and the latter's girlfriend - whose son shot up the school - are killed and buried. Elsewhere, Bobby has added another member to his list of recruits.
Credits
Adapted from Wikipedia contributors, Sons of Anarchy season 6. HTML formatting and reference markers removed.