A man accused of opening fire aboard a Greyhound bus traveling through California has pleaded not guilty to one count of first-degree murder and five counts of attempted murder. Anthony Devonte Williams, 33, of Capital Heights, Maryland, entered his pleas Thursday in Kern County Superior Court, The Bakersfield Californian reported. An attorney, Clayton Campbell, appeared and said he had been…

Passengers expressed concerns there were not enough security measures in place to prevent someone bringing a weapon onto the bus. Patrick Healy reports for the NBC4 News at 4 p.m. on Tuesday, Feb. 4, 2020. (Matthew Halla)

Would-be plotters bent on staging an attack aboard a passenger plane know they’ve first got to pass through a gauntlet of security measures at an airport, from body scans and spot interrogations to pat-downs and even close scrutiny of their shoes. But a shooting that killed a person and wounded five this week on a Greyhound bus in California illustrates a...