Two schoolchildren live-streamed themselves in a shootout with police before turning their guns on themselves.
The 15-year-olds were found dead inside a house in the northwestern Russian Pskov region after the standoff.
The boy, named Denis Muravyov, had shot the mother of the girl, who was named Katya, in the leg during a row about attending a sleepover.
The chilling footage was filmed as police surrounded the house they were in.
In one horrifying sequence, Katya is seen holding a gun to Denis’s head.