Boromir:

Boromir, the son of the Steward Denethor, was one of the Nine Walkers of the Company of the Ring from the time it left Rivendell to the Falls of Rauros, where he was slain by orcs. Near the end, Boromir fell to the lure of the Ring, and attempted to kill Frodo. Though he repented, Frodo had already fled across the River with Sam. In the search for them, Boromir followed Merry and Pippin into an ambush of Saruman's orcs, with reinforcements from Mordor. He was slain and Merry and Pippin taken by the orcs.