Investigators are still trying to solve the brutal November killings of four college students in Moscow, Idaho. Making their work harder: the hordes of online sleuths who’ve latched on to the case.

This episode was produced by Miles Bryan and Hady Mawajdeh, edited by Matt Collette, fact-checked by Laura Bullard, engineered by Paul Robert Mounsey and Efim Shapiro, and hosted by Noel King.

Transcript at vox.com/todayexplained

Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts

Learn more about your ad choices. Visit podcastchoices.com/adchoices