NEW BRITAIN, Conn. (AP) A Connecticut man charged with fatally stabbing a family friend's 1-year-old daughter while under the influence of drugs has pleaded guilty.

The Hartford Courant reports that 36-year-old Arthur Hapgood Sr., of Waterbury, was originally charged with murder, risk of injury to a minor and first-degree reckless endangerment in connection with the death of 14-month-old Zaniyah Calloway in August 2014.

But under terms of a plea deal, he pleaded guilty Tuesday to the murder charge. He is scheduled to be sentenced in January.

Prosecutors say Hapgood was at the Bristol home of his mother, who was taking care of Zaniyah, when he became violent and stabbed the baby in the abdomen. He told police he had taken illegal drugs, which police said was marijuana that may have been laced with PCP.