 BART police said a suspect has been arrested after he fatally pushed an elderly woman into an oncoming train in San Francisco. Authorities have arrested 49-year-old Trevor Belmont. BART rider Anna Showers said the city needs to increase safety. I have been verbally accosted. I have witnessed other people being accosted as well. And I know that the BART police are here. We do see them doing what they should be doing, but it's not enough.