(Sioux Falls, SD) — It was a not guilty plea yesterday from the suspect in Sioux Falls’ weekend triple homicide. Justin Rackley made his first court appearance in the case yesterday. He’s accused of killing three people at a small party on Sunday, though investigators are still not saying why. Sioux Falls Police say it doesn’t look like the killings were an attempted robbery or a crime of passion. Police say they continue to look for people who were at the party, and who may be able to provide some insight.