Antosca was born in New Orleans, Louisiana and currently lives in Los Angeles, California. He is a 2005 graduate of Yale University.
Midnight Picnic was set to be published by Impetus Press, but the small publisher folded under financial pressure in the fall of 2008. Word Riot Press stepped in and the novel was published in 2009.
Antosca was in a screenwriting partnership for several years with Novelist Ned Vizzini, who died in 2013.
In March 2015, he was named as Screenwriter of the upcoming Friday the 13th film. However, when a new Director came on board, Antosca's script was discarded and a new Screenwriter was hired to write a draft. In early 2017, the project was scrapped altogether.
