From Book 88

[88.1] Sulla drove Carbo out of Italy, having defeated his army at Clusium, Faventia, and Fidentia, and fought, with the Samnites (the only Italian nation that had not laid down its weapons yet) near the city of Rome at the Porta Collina, and having restored the state, soiled his beautiful victory with a greater cruelty than anyone had ever displayed.

[88.2] In the Villa publica, he killed 8,000 people who had already surrendered, set up a proscription list, filled the city and all of Italy with slaughter, ordered the murder of all unarmed Praenestines, and killed Marius, a man of senatorial rank, after having broken his legs and arms, cutting off his ears and pulling out his eyes.

[88.3] When Gaius Marius, still besieged at Praeneste by Lucretius Ofella of the Sullan faction, wanted to escape through a tunnel that turned out to be blocked by the army, he choose death.

[88.4] That means that when he found out that there was no escape from the tunnel, he and Telesinus, his companion in flight, ran into each other's drawn swords; Marius killed the other, was wounded himself, and killed by his slave.