An Oakland man died after helping his family escape a house fire on Christmas morning, according to officials. The fire sparked early Wednesday morning in a home on the 3500 block of Oak Knoll Boulevard, according to Michael Hunt, a spokesperson for the Oakland Fire Department. Firefighters were dispatched to the fire around 6:15 a.m. A 37-year-old man living in the house discovered the fire and alerted his father, aunt and brother, allowing…