Abi.smith

In the first two rounds, he killed himself with Capitao's arrows. In the third round, he activated wallhacks. In the fourth round, he killed himself again with Warden, and in the last round, he activated wallhacks again with Ela. You can also check his stats; he won 14 games in a row, and in the last few, he started griefing to lower his K/D and stats.