Leonard Thomas Lake, also known as Leonard Hill and a variety of other aliases, was an American serial killer. During the mid-1980s, he and his accomplice, British Hong Kong-born Charles Ng, raped, tortured and murdered an estimated eleven to twenty-five victims at a remote cabin near Wilseyville, California, in the Sierra Nevada foothills, located 150 miles east of San Francisco. After his 1985 arrest on unrelated charges, Lake swallowed cyanide pills that he had sewn into his clothing and died four days later. Human remains, videotapes, and journals found at Lake's cabin later confirmed Ng's involvement, and were used to convict Ng on eleven counts of capital murder.

Balboa High School, colloquially known as Bal, is an American public high school located near the Excelsior District in the Mission Terrace neighborhood of San Francisco, California, United States. Balboa serves grades nine through twelve as part of the San Francisco Unified School District (SFUSD).