This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

The family of Hun Joon “Paul” Lee, a 19-year-old Whittier boy with autism who died after being left unattended in a school bus, stood alongside state Sen. Tony Mendoza to celebrate the signing of SB 1072. The law will require a child-safety alarm system on all school buses in the state. Kareen Wynter reports for the KTLA 5 News on Sept. 28, 2016.