[2][3] Riggs was a licensed practical nurse, and she planned to kill the children with injections of drugs she obtained from her hospital.

The child's father was not involved in their lives, but before Justin was born in June 1992, she began dating Jon Riggs.

The couple moved to Sherwood, Arkansas, where her mother lived, in 1995, and Christina Riggs got a job there at Baptist Hospital.

She obtained the amitriptyline from a local pharmacy, and she stole the morphine and potassium chloride from the hospital where she worked.

[5] Riggs injected the potassium chloride into Justin first, and the undiluted medication caused a great deal of burning in his veins but did not kill him.

[6] At her June 1998 trial, Riggs contended she was not guilty by reason of insanity, due to depression as well as the trauma that came from working as a nurse near the site of the Oklahoma City bombing.

During the sentencing phase, Riggs prevented her attorneys from putting on a defense, saying she wanted to be executed.

[7] Riggs was held at the McPherson Unit, which included the female death row, until her execution.