Tinley Park Triangle Sightings

Record summary

Residents of Tinley Park and nearby suburbs reported red or orange lights arranged in triangular formations on several occasions beginning in 2004. The reports drew attention because some witnesses were unrelated observers and because local investigators collected video and interviews. The case is relevant to questions about repeated observations, neighborhood rumor, witness contamination, and the interpretation of lights at night. Proposed explanations have included aircraft, flares, and misperception, while advocates emphasize the apparent recurrence. The evidentiary record consists largely of civilian interviews and recordings rather than an official identification.