This video is from a Russian TV. A group of youths frolicked on a bridge across the Volga River in the city of Saratov and one decided to jump. He surfaced and swam toward the riverbank, but after a few seconds froze up and became unresponsive. His friends on the bridge realized that he was in trouble so one decided to jump after him. But his jump went wrong as well and as soon as he surfaced, he was unresponsive.
The youths called the emergency and river rescue teams were sent in to recover the boys. One they found right away and handed him over to the medics who tried to resuscitate him but to no avail. The other one took a while to find and as the first one, could not be revived. Two senseless deaths in one day.
The plunge from the bridge to the river was only 25 meters (82 feet) which is rather high, but not all that high. I’ve seen people easily handling higher drops to water. These guys must have both screwed up on the landing. Maybe they landed flat and the impact knocked the wind out of them and if you can’t breathe properly in water, you’re screwed. Another possibility is that the kinetic energy of their fall forced water into their body orifices, resulting in fast drowning.