A motorist was arrested on murder charges after authorities say she slammed her SUV into a city bus in Los Angeles, killing at least two people and injuring six others in a prelude to a second deadly tragedy: the fiery crash of a TV news helicopter that was covering the collision.

Bailee Lynn Rios, 36, of Simi Valley, was arrested Tuesday night and was being held at a Los Angeles jail with bail set at $4 million, police said Wednesday. The case is under review by the district attorney's office, which will decide whether to file the charges in court or pursue different ones. Information on a lawyer who could speak on her behalf was not immediately available.

The helicopter, which was used by NBC and Telemundo, crashed about two hours after police say Rios drove her 2004 Ford Expedition the wrong way down a busy avenue, ran a red light and struck a vehicle before hitting the bus. One passenger was fully ejected from the bus and another was partially ejected, police said.

Rios' mother, Cindy Rios, said she was shocked and saddened by the string of events. She said she had not spoken to Bailee Lynn since her arrest and had not been contacted by law enforcement.

 The fact that my daughter was involved and was the cause of it is just extremely disturbing,  Cindy Rios told The Associated Press in a phone interview Wednesday.  If anything, I'm sorry for the other families ... My daughter's alive. People lost their lives. 

The two people who died in the bus crash were identified as Daniel Castillo, 46, of Los Angeles, and Gage Weida, 31. No city was given for Weida, but according to his Facebook page, he also lived in LA.

Castillo's youngest daughter, Johaunna, said her father's presence made people feel loved, welcomed and cared for. He is survived by his four children.

 There are no words that can truly capture how much we will miss him or the space he leaves behind in our lives,  Johaunna Castillo wrote on a fundraising page for funeral expenses.

Chopper crash killed a reporter, a pilot and a man on the ground

NBC4 Los Angeles reported that two people aboard the helicopter - reporter E

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