S10, E13: When young girl Rosie Rinaldi (guest star Daisy Tahan) is kidnapped, the girls mother, Liz Rinaldi (guest star Michelle Ray Smith) immediately points Detectives Olivia Benson (Mariska Hargitay) and Elliot Stabler (Christopher Meloni) in the direction of her ex-husband, Geno Parnell (guest star Ron Eldard), a recently paroled convict. When Parnells alibi checks out, a fight erupts between Parker and Detectives Stabler and Odafin Tutuola (Ice-T), which in turn unveils some knowledge on Parkers ex-wife. Parker admits Lizs father is Frank Hagar (guest star Dabney Coleman), a master thief with a lot of enemies. The detectives pay a visit to Hagar, but are surprised to find he has a severe case of Alzheimers disease. With the help of Dr. George Huang (B.D. Wong), the detectives are able to put together a few clues to solve the case, but must pair up again with Parker in order to find Rosie. Also starring: Richard Belzer (Detective John Munch), Dann Florek (Captain Donald Cragen), Ice-T (Detective Odafin Tutuola), Michaela McManus (A.D.A Kim Greylek), Tamara Tunie (Dr. Melinda Warner), and B.D. Wong (Dr. George Huang).