TULSA, Okla. – An Illinois man suspected in a plot to firebomb dozens of Oklahoma churches last fall with Molotov cocktails is unstable and has battled bouts of mental disorders and depression throughout most of his life, his aunt said this week.

Gregory Arthur Weiler II, 24, of Elk Grove Village, Ill., is accused of planning to destroy 48 churches in northeastern Oklahoma and preparing to launch the attacks from a tiny motel he was holed up in near Interstate 44 in Miami, Okla.

"When we visited him [in jail] he was unable to finish his sentences," Weiler's aunt, Joanne Meyers, said sobbing.