Dr David Rye, a sleep medicine specialist of the Emory Sleep Center, testifies at the murder trial of Tex McIver on April 11, 2018 at the Fulton County Courthouse, reports the Atlanta-Journal Constitution.

Rye testifies that McIver has a REM behavioral disorder and that makes confusional arousal more likely, especially if there is a stimulus that would prompt it to happen.

Fulton Assistant District Attorney Adam Abbate is cross-examining the witness now, asking which sleep disorder in particular was to blame on the evening Diane McIver was shot.  Either REM behavioral disorder or confusional arousal could be responsible, Rye said.

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