A Perry, Missouri woman enters a not guilty plea in connection with the death of a Perry woman last October.

31-year-old Christina Schalk pleaded not guilty Tuesday to charges of second degree murder, delivery of a controlled substance and involuntary manslaughter.

Schalk is alleged to have delivered heroin to 47-year-old Karen Caldwell on October 25. She died of a heroin overdose three days later.

Schalk is scheduled for a jury trial May 20.