Law & Order: Criminal Intent 1x3

After the body of Lois Romney is found in a hotel room, Goren and Eames link her to Dale Van Acker, a junkie and the son of wealthy scion Priscilla Van Acker. Van Acker strongly disapproved of her son's pregnant fiancée, which leads Goren and Eames to suspect she may have wanted to get rid of the girl on a permanent basis.