A PUBG player ran into a not-so-subtle hacker who was using a speedhack plus a ESP hack and an aimbot. The triple threat allows you to find enemies at a distance, travel quickly to that location, and use the aimbot to finish off the enemy players.
Usually players try to hide their hacks by prompting an aimbot every so often or just using a radar hack to spot enemies and then use their own skills against the enemy players. Speedhacks are easily noticeable, so the player is either an experienced hacker who has multiple accounts or a newbie not aware of their eventual demise.
Redditor downvotedotcom8 posted the clip and explained how he found the hacker. He heard a silenced beryl off in the distance, then immediately ran into the enemy player as they speedhacked to his location. He quickly fell victim to the hacker, and then decided to spectate him for a while.
It went as expected.