The 24-year-old father was attacked Monday evening on a sidewalk in an area that has been plagued by gang violence, police said. The gunman appeared to be a 15- to 17-year-old boy in a hoodie sweatshirt, police said.
He rode past the father and fired several shots, police Capt. Phillip Tingirides told KCAL-TV.
The infant was shot in the stomach and died at a hospital following surgery. The father was struck in the shoulder and remained hospitalized in stable condition, police said.
Their names were not immediately released.
Police have not released a motive, though Tingirides said investigators were leaning heavily toward gang rivalry. The attacker was black and the father is Latino, authorities said.
A conflict between black and Latino gangs has led to more than a half-dozen killings in the area in the last year, police said.
