Zach Osler, a high-school classmate of Loughner's and his closest friend, indicated that Loughner's life began to unravel after his high-school girlfriend broke up with him. He began to abuse alcohol and other drugs, including cannabis (marijuana), cocaine, psychedelic mushrooms, LSD, and Salvia divinorum (a hallucinogen legal in Arizona). After struggling with drugs for more than two years, Loughner gave up alcohol, tobacco, and recreational drugs in late 2008 and has not used since, according to one of his longtime friends. The U.S. Army confirmed that Loughner had been rejected as "unqualified" for Service in 2008. According to military sources, Loughner admitted to marijuana use on numerous occasions during the application process.