A San Joaquin Sheriff´s detective says a college student accused of killing Larry McNabney with horse tranquilizers gave conflicting statements before she was considered a suspect. The preliminary hearing for Sarah Dutra wrapped up yesterday. Judge Bernard Garber could decide Monday whether there is enough evidence to try Dutra for murder. Deborah Scheffel says that in one interview, Dutra said she last saw McNabney at a Los Angeles-area horse show. In a second, she said she last saw him at his home in Woodbridge. McNabney disappeared from a horse show in September. Authorities say his wife, Laren Sims Jordan, and Dutra poisoned him with horse tranquilizer and stuffed him into a refrigerator. Jordan fled the state in January and was arrested in Florida, where she later hanged herself.