San Francisco District Attorney Brooke Jenkins has announced felony vehicular manslaughter charges against Mary Fong Lau, 78, for a crash in the West Portal neighborhood that killed a family of four in March. Lau's SUV was reportedly traveling between 65 and 72 mph, double the speed limit, when it veered into an oncoming lane and struck the family at a bus stop. Toxicology tests confirmed that drugs and alcohol were not factors, and no mechanical failures were found in Lau's vehicle. The victims, Diego Cardoso de Oliveira, his wife Matilde Moncada Ramos Pinto, and their two young sons, were on their way to the zoo. In addition to criminal charges, the surviving relatives have filed a wrongful death lawsuit against Lau. Lau's attorney has stated that they are reviewing the case to prepare her defense.