Lee Farley, the 27-year-old suspect arrested in the January 2015 killing of four young men in Hayes Valley, pled not guilty to murder charges in a court appearance this morning, reports the Examiner. 

Farley was serving time in a high-security federal prison in Atwater, CA before being booked into San Francisco County Jail on the new charges. Further suspects in the fatal drive-by shooting of Yalani Chinyamurindi, 19, Harith Atchan, 21, David Saucier, 20, and Manuel O’Neal, 22, have yet to be arrested.