sentences:  In 2014, he sponsored SB 808 which passed both houses of the legislature but was vetoed by Governor Jerry Brown.In 2016, De León led the charge in the passage of a package of eleven bills intended to prevent gun violence.These included De León's SB 1235, which created a new framework for purchasing and selling ammunition designed to address the ambiguities of his earlier SB 53, and his SB 1407, requiring a serial number from the Department of Justice before building or assembling a gun.