Moscow homicides: Investigation details revealed in recent updateListenPolice say they have ruled out several potential suspects in the homicide investigation of four University of Idaho students stabbed last week.(Runtime 3:00)ReadAccording to the latest Moscow Police Department press release, the four University of Idaho students who died were likely asleep, each was stabbed multiple times and some had defensive wounds.Detectives say they’ve also contacted local businesses to see if anyone purchased a large fixed-blade knife — the likely murder weapon.“What we hope they are doing is they have information that they’re withholding because they don’t want the person, whoever they eventually find, to know what they’ve been talking to the press.Investigators are asking anyone who saw suspicious behavior, or has video footage or information about the attack to call their tip line at 208-883-7180 or email [email protected]."