Sharon says her 15-year-old son, Gabe, a childhood cancer survivor, has been in trouble with the law since he got arrested at age 12 and is now hanging out with alleged gang members. Gabe's dad, Jason, claims his wife sinks to Gabe's level and doesn't understand Gabe is who he is and can't be forced to change. Gabe's older brother, Jadian, says his parents allow Gabe to manipulate them. Sharon's best friend, Rosalie, says both Sharon and Jason blame Gabe's cancer for his behavioral problems. Gabe says he likes to hang out with his "homies" and says his mom gets too emotional about everything he does.

A brutal murder: Tracy Harris, a wife and young mother, was found naked, drowned, and possibly strangled in a river in 1990. The case went cold for 20 years, before Harris' husband, Carl, was arrested. But right before his murder trial, somebody very close to him confessed. Today, Carl speaks out in an exclusive interview. Plus, a shocking reunion. Will Carl's daughter forgive him after believing he murdered her mother?