There are initially 3 victims in this episode; 2 men and 1 woman. The coroner, Sid Hammerback, says the first male drown, the second died from a blow to the throat and the lone female died from hypothermia from the cold water; she lost her way while swimming (there is a video of her swimming to the surface) But her body was discovered by Mack Taylor in the trailer when the lock was cut off and the door opened.