Several fraternity and sorority houses on the University of Colorado Boulder campus received strange and unsettling packages early Monday morning.
The Boulder Police Department said an individual taped CDs to the houses’ front doors about 1:30 a.m. Monday.
The CDs contained audio clips, including some audio from the “Criminal Minds” television show, a show about FBI agents analyzing serial killers and other criminals.
Police have not released what specific audio was used.
At least five of the CDs were left taped to the doors in white envelopes, police said.
Using surveillance footage, police identified the individuals responsible for the packages late Monday night. Police said they do not believe there to be a threat to the houses or the CU community.
The suspects' identities have not yet been released. Police are working to determine if any criminal charges apply.
Boulder police and the CU Boulder Police Department are continuing the investigation.
Anyone with information about these incidents is asked to call 303-441-3333 and reference case 21-1367.