Crew members probably didn't sabotage the International Space Station

The hole drilled into the Russian module on the International Space Station was made and plugged (unsuccessfully) before it was ever launched into orbit, three sources in Russia’s rocket and space industry told the news agency RIA Novosti. A commission assembled by the rocket and space corporation Energia, which developed and built the “Soyuz” module, has reportedly determined that the plating was damaged before the equipment was sent to the International Space Station. Sources say the panel was plugged with a special glue that unexpectedly didn’t hold.

This apparently negates the “homesick cosmonaut” theory floated by Russian State Duma deputy Maxim Suraev, who said on August 4 that a “mentally unbalanced” crew member may have tried to expedite their return to Earth.