"He left work after taking a large, fixed-blade knife... and he set off to murder Carmen Puch." Fairfax County Assistant Police Chief Rachel Levy lays out what

"He left work after taking a large, fixed-blade knife... and he set off to murder Carmen Puch." Fairfax County Assistant Police Chief Rachel Levy lays out what investigators say happened before Carmen Lizet Puch was stabbed to death at a park in a DC suburb. Police allege that Alexis Antonio Cedil…