M. Mabeuf was the Churchwarden, and Marius' best friend. He told Marius the truth about his father caring for Marius. He went on walks, with at least 1 book, and usually came back with two. When Valjean's purse was stolen and thrown by Gavroche, it was Mabeuf who found the purse, which helped pay for bills (that's not true, he gave the purse to the police having no benefit from Valjean's money, it's written in a ninth part of a volume III). He was the first to die at the barricades, when he volunteered to retrieve the red flag of the revolution and was shot.