Captain Laporin was a Benzenite Starfleet officer who served as a starship captain during the Federation-Klingon War of 2372-73. While attending Starfleet Academy, one of Laporin's classmates was future fellow Starfleet captain, Benjamin Sisko.
In late 2372, the Klingons boarded Laporin's starship during a bloody skirmish. The boarding party was merciless to Laporin's crew, and Laporin witnessed a Klingon behead his Tellarite helmsman. Moments later, the same Klingon tore off Laporin's breathing tubes, killing the captain.
In 2373, Captain Benjamin Sisko learned of Laporin's fate while on the Klingon outpost Ty'Gokor, as told by the Klingon soldier who committed it. Sisko was angry to hear of this, so he assaulted the Klingon and beat him up, but maintained his cover by shouting "Brag all you want, but don't get between me and the bloodwine!" (DS9: "Apocalypse Rising")