columbinus is a play written by Stephen Karam and PJ Paparelli, with contributions by Josh Barrett, Sean McNall, Karl Miller, Michael Milligan and Will Rogers, created by the United States Theatre Project. The play looks at issues of alienation, hostility and social pressure in high schools and was suggested by the April 1999 massacre at Columbine High School in Jefferson County, Colorado. The play premiered in Silver Spring, Maryland in 2005 and then Off-Broadway in 2006.