07/28/2016 03:09 EDT | Updated 07/28/2016 03:59 EDT

Tyler Hogan Charged In Death Of Lethbridge Girlfriend's Baby

Getty Images/Westend61

LETHBRIDGE, Alta. — A charge of second-degree murder has been laid against a southern Alberta man accused of killing a nine-month-old boy who was left in his care.

Police in Lethbridge say Austin Wright wasn't breathing and was in cardiac arrest when paramedics found him in a home after answering an April 28 call about a baby in medical distress.

The child was taken to hospital where he was pronounced dead.

Investigators say Austin had been left with his mother's boyfriend while she went to work, and that he was allegedly assaulted when he started crying.

Police were initially told that the baby had just stopped breathing, but an autopsy determined he died as a result of blunt force trauma not consistent with a fall.

Tyler Brian Hogan, a 40-year-old Lethbridge resident, was arrested Wednesday and was scheduled to appear in court Thursday.

Also on HuffPost:

Calgary's Most Wanted (July 2016)