A former Avera doctor who met with James McVay after he murdered Maybelle Schein took the stand Tuesday in the third day of the 43-year-old's death penalty hearing.
McVay has pleaded guilty but mentally ill to the 2011 murder of Schein. He says it was part of a plot to assassinate the president.
The Minnehaha County State's Attorney's Office has rested its case against the admitted killer.
Tuesday morning, defense attorneys called Dr. Eric Kutscher to the stand to testify about the effects of the cold and cough medicine McVay took the day before the murder.
Kutscher also talked about how McVay told him he grew up in a meth house in Texas and his mom was a heroin addict while she was pregnant with McVay.
The trial is expected to last until the end of the week.