Marc Laidlaw

Marc Laidlaw (born August 3, 1960) is an American science fiction and horror writer. He is most famous for working on "Half-Life" series.
Biography.
Marc Ladlaw was born in Laguna Beach, California. He went to the University of Oregon. He wrote short stories and novels. His first novel "Dad's Nuke" was published in 1985. He worked as a legal secretary in San Francisco.
He joined Valve Corporation to work on Valve's first game, "Half-Life". He worked on the story and level design of the game. In January 2016, he said that he left Valve.. 
On August 25, 2017, Laidlaw published "Epistle 3". It tells his vision on the storyline of "Half-Life 2: Episode Three" he had during the time he worked at Valve.
Books.
Laidlaw had also wrote many short stories.