ENTERTAINMENT
December 6, 2006 | By Robin Abcarian, Times Staff Writer
To understand the new documentary "Screamers," you have to understand, first, about the 97-year-old man who lives in an Armenian old folk's home in Mission Hills. His name is Stepan Haytayan; he is the grandfather of Serj Tankian, the lead singer of System of a Down, one of the world's most critically acclaimed rock bands. Haytayan is a survivor of the first genocide of the 20th century -- the extermination by Turks of an estimated 1.