Search for motive in Monterey Park rampage

Investigators in Monterey Park, California, are still working to understand what motivated the 72-year-old suspected gunman to open fire at a dance hall, killing 11. Detectives say a search of the suspect’s home yielded hundreds of rounds of ammunition, a rifle, as well as evidence he was manufacturing his own silencers. Kris Van Cleave has the latest.
Source: CBS Minnesota