'Gruesome' Suitcase of Body Parts Left on Busy SF Street Police say a suspect is identified in case By Arden Dier, Newser Staff Posted Jan 29, 2015 9:43 AM CST 12 comments Comments Stock photo. (Shutterstock) (Newser) – Police responding to a call about a suspicious package on a downtown San Francisco street yesterday found what a spokeswoman calls "an extremely gruesome crime scene." Next to a pile of garbage and debris, a rolling suitcase held dismembered human body parts, police say, per the San Francisco Chronicle. In case that isn't horrific enough, the police rep tells USA Today the body was so mutilated, a medical examiner was needed to determine if it belonged to a human or animal. A search turned up more body parts at three locations within a three-block radius, the Los Angeles Times reports, though it isn't clear if they belong to the victim in the suitcase, whose race, gender, and identity is unknown. "There was one crime scene—it was just very large," the rep says, adding authorities have a "preliminary, distinct suspect description" and are "actively attempting to locate this particular person of interest." The same rep tells CNN, "We do have people of interest that homicide investigators are speaking to." Police are also attempting to nab surveillance footage from nearby businesses. Officers first arrived to the scene in the South of Market area around 4:15pm yesterday, but it isn't clear when the suitcase was left. USA Today describes the spot as a "long-troubled area" known for its high population of homeless people. Twitter's headquarters sits just about a block away.