LOS ANGELES — Prosecutors have charged a 36-year-old woman with two counts of second-degree murder in the deaths of passengers aboard a Los Angeles city bus, saying she was speeding and under the influence of drugs when she caused the collision in Chatsworth on Tuesday. Bailee Lynn Rios was driving a 2004 Ford Expedition the wrong way along a busy avenue when she allegedly ran a red light, struck another vehicle and then crashed into the city bus, Los Angeles County District Attorney Nathan Hochman said Thursday. The two bus riders who died were identified as Daniel Castillo, 46, and Gage Weida, 31. Rios was being held on $4.1 million bail and was scheduled to appear in court Friday. Court records did not identify an attorney who could comment on her behalf, and the public defender’s office said it had not been appointed to represent her. The charges are allegations, and Rios is presumed innocent unless proven guilty in court. The tragedy grew deadlier shortly afterward when a television news helicopter covering the bus crash went down. Pilot George Marciniw, reporter Eliana Moreno and Edy Gutierrez Mejia, who was on the ground, were killed. The crash sparked fires that damaged at least four vehicles and two storage containers. Hundreds of people gathered Thursday evening for a candlelight vigil in Chatsworth. Friends and relatives brought photographs, prayed and honored victims of both crashes. Castillo’s daughter, Johaunna Castillo, said her father was returning from his job at a car-parts warehouse and was riding the same bus he took each day. He favored the back seat and enjoyed watching and talking about the people he encountered during his commute, she said. He had told his daughter he was boarding the bus and would call when he reached the walk home. That call never came. She described him as hardworking, lively and a source of joy to colleagues, friends and people he met in passing. An online fundraiser has been established to help cover his funeral expenses. Investigators have not announced what caused the helicopter to crash. The National Transportation Safety Board is examining the final seconds of video broadcast by the crew, which includes an alarm sounding in the cockpit as the helicopter lost altitude. NTSB investigator Fabian Salazar called the footage potentially the most significant evidence gathered so far. In the recording, a woman can be heard asking, “You can’t pull up?” shortly before the video ends. Aviation safety expert Jeff Guzzetti said the alarm could indicate engine-power failure and a dangerous drop in the main rotor’s speed, though investigators have not reached a conclusion. Moreno and Marciniw worked for Angel City Air, which provided aerial coverage to NBC4 and Telemundo 52. Moreno joined the company in 2010 after earning degrees in broadcast journalism and political science from Chapman University. She began flying with Marciniw in 2023. Marciniw was a Southern California native and a graduate of Burbank High School. The NTSB is investigating both the bus collision and the helicopter crash. Federal accident records and news accounts show at least eight fatal U.S. news-helicopter crashes since 2000, resulting in 16 deaths.