DALLAS (AP) — A Texas nurse who is in prison for the 1982 killing of a toddler has been charged with murder in the death of an infant a year earlier, and authorities said Friday that they think she may have killed up to 60 young children around that time.

Genene Jones, 66, is serving concurrent 99-year and 60-year sentences at a Gatesville prison for the 1982 killing of 15-month-old Chelsea McClellan and the sickening of a 4-week-old boy who survived. The girl was given a fatal injection of a muscle relaxant and the boy received a large injection of a blood thinner.

Jones was due to be freed n...