On July 17, 2014, Malaysia Airlines Flight 17 crashed in eastern Ukraine, killing all 298 people onboard.

Western officials believe pro-Russian rebels brought down the passenger jet, using a missile launcher known as a Buk that was possibly supplied by Russia. Moscow, for its part, blames Ukrainian government forces for the downing of the plane. A Dutch-led team of investigators is expected to present a final report later this year.

Amid all this international intrigue, Eliot Higgins and a team of researchers known as Bellingcat say they have they've found out who did it.