Latia Harris wanted in beating of Catherine Ferreira that was caught on video
WARNING: Video contains graphic language and violence.
Police are looking for a woman who was videotaped beating a young mother in front of her son.
Bystanders can be seen watching the brutal attack along a Salem trail and pulling out their cellphones not to call for help, but to record the scene.
Catherine Ferreira's 2-year-old son appears to be the only one to step in to try...