Aquarius S02 E13 I Will

"Murder. Madness. Manson."

A newly "retired" Hodiak tracks down the serial killer who has been tormenting him for months, without the protection and authority of his police position. Manson sends Tex, Sadie, Emma and Patty to 10050 Cielo Drive, where they are swept up in one of the most infamous crimes in the country's history. (Season Finale)