A 22-year-old man has been charged with three counts of murder for a violent collision in South Los Angeles that killed a man, a woman and their 5-year-old daughter and badly injured the girls sister, the L.A. district attorney announced Thursday.

Jordan Kahari Isaac was allegedly driving under the influence of alcohol on New Years Eve when he ran a stop sign and plowed into a sedan occupied by Jose Pascagaza, 49, his wife, Luisa Bernal, 30, and their daughters Mia, 5, and Hanna, who just turned 2. The toddler suffered traumatic injuries but is expected to recover, authorities said.