Pierre Gemayel was first elected to parliament in 2005 and was believed to be the youngest legislator in the legislature.
He came from a prominent family of politicians.
His father, Amin, served as president between 1982 and 1988 and his grandfather, the late Pierre Gemayel, led the right-wing Christian Phalanage Party that fielded the largest Christian militia during the 1975-90 civil war between Christians and Muslims.
Amin Gemayel is the current leader of the party.
Pierre was a rising star in the party and expected to carry the mantle of the political family to the next generation.