India, July 18 -- The updated ABC 20/20 special on the Jacob Wetterling case has brought renewed attention to one of America's most haunting child abduction cases. The episode, which aired Friday night, includes interviews with Jacob's mother, Patty Wetterling, co-author Caroline Lowe, and Jared Scheierl, the survivor of a kidnapping that occurred months before Jacob disappeared.

The new episode, titled "Where Are You Jacob?" has sparked questions about Danny Heinrich, the Minnesota man who admitted to abducting, sexually assaulting and killing 11-year-old Jacob Wetterling in 1989 and also abducted and sexually assaulted Scheierl a few months before.

Heinrich is currently serving a 20-year federal prison sentence after pleading guilty t...