In a 28-year-old case related to the murder of a Catholic nun in Kottayam, a CBI court in Thiruvananthapuram on Tuesday found two accused -- priest Thomas Kottoor and nun Sister Sefi -- guilty. The punishment for the duo in the longest-running investigation will be pronounced by CBI special court judge K Sanal Kumar on Wednesday. Seventy-one-year-old Kottoor, a scholar in moral theology, is the first accused and 57-year-old Sefi is the third accused in the case. The state police had initially concluded the 19-year-old nun Sister Abhaya, a student of Kottayam's BCM College, and a member of the Knanaya Catholic community died by suicide on March 27, 1992. This was as she went from her hostel room to the kitchen at around 4.15 AM.