Transcript for Hotel cook arrested with massive arsenal of weapons
Now to a scary situation involving a hotel employee in California. A Marriott cook is now under arrest accused of planning a mass shooting. Will Carr has the latest from Long Beach. Reporter: Authorities say they found hundreds of rounds of ammunition, tactical gear and a cache of weapons including an automatic rifle and high capacity magazines both illegal in California inside the home of 37-year-old Rodolfo Montoya. Suspect Montoya had clear plans, intent and the means to carry out an act of violence that may have resulted in a mass casualty incident. Reporter: Authorities describe Montoya as a disgruntled hotel employee who threatened to kill his co-workers and hotel customers. He told a co-worker about his plan on Monday. He spoke to a fellow employee and talked about his anger towards the employees or fellow employees and he went into somewhat description of what he was going to do. Reporter: Hotel management at the Long Beach Marriott then called police which led to Montoya's arrest. Authorities now say that phone call may have prevented the country's next mass shooting. Thank god that employee decided to bring that information forward. Reporter: It all goes back to see something, say something. Since the attacks in both el Paso and Dayton there have been at least a half dozen arrests for similar threats across the country. As for the suspect in this cases behind bars with a bail of $500,000. Thank goodness people are speaking up now. Will, thank you.
This transcript has been automatically generated and may not be 100% accurate.