If you have any information regarding this case, you can contact Frankfurt Police at: 069-755-51108 or 069-755-53111. Sources: https://unresolved.me/tristan-brubach https://www.reddit.com/r/UnresolvedMy... [delete] https://hollywoodreif.de/der-mordfall... https://merkurist.de/frankfurt/unverg... https://www.fnp.de/frankfurt/jahre-da... https://www.facebook.com/Mordfall.Tri... Dark Curiosities is a series exploring solved and unsolved crimes, mysterious happenings and truly nightmarish events.