15. Brother's Keeper

Detectives Goren and Eames investigate the death of Marjorie Riggins ( Christine Lindsay-Abaire ), wife of televangelist Rev. Calvin Riggins ( Tom Arnold ) following his fiery televised debate with evolutionist Dr. James Corliss ( Reg Rogers ). Initially, the murder appears to be connected to a possible blackmail attempt over Riggins' sexual intercessions with his masseur Diego ( Brian Letscher ), but this is ruled out. Eventually Corliss is identified as the murderer who accidentally killed Marjorie. Corliss could not understand why she chose to marry Riggins instead of him and why she told Riggins about his autistic brother Jimmy ( Todd Buonopane ). Meanwhile, Goren's attention to the case is hampered by his anxiety over his ailing mother and her concern for Frank, Goren's destitute and troubled brother.