Christon Scriven Source:  Facebook/Daily Mail

By Kieran Corcoran, Jun. 20, 2015, Daily Mail

Charleston race killer Dylann Roof originally planned to shoot up a college before changing his mind and massacring worshipers in church, according to a shocked black drinking buddy who counted Roof as a 'homeboy'.

Christon Scriven, 22, said that Roof drunkenly described a scheme to massacre students on the College of Charleston campus just a week ago.

But Roof seemingly modified his plan when he sat in on a Bible study class at the city's AME Emanuel Church for almost an hour, then opened fire on his nine victims.

Scriven said he didn't believe Roof would actually carry out his plans for a mass shooting - but was still scared he could turn violent, so hid his gun when he wasn't looking.

He and another friend - Roof's high school pal Joey Meek - stashed his .45-caliber handgun, a birthday present, in an air condition vent, but gave it back once they had all sobered up.