San Francisco on the hunt for a gay serial killer from the 70s.

This pair of sketches provided by the San Francisco Police Department, Wednesday, Feb. 6, 2019, shows what a serial killer might look like now in a cold case involving at least five stabbing deaths of gay men in the mid-1970s in San Francisco. (Image: San Francisco Police Department—AP)

More than 40 years after a serial killer dubbed the “Doodler” terrorized San Francisco’s gay community, police released a sketch Wednesday of what the man might look like today and announced a $100,000 reward for details leading to his capture…