A northern Kentucky man has been charged with reckless homicide in the death of his 2-month-old grandson.

David Cull, 50, of Campbellsburg was arrested on Thursday following the death of his grandson, Xavien Cull.

A preliminary investigation by state police determined the infant was killed when David Cull sat on a chair, crushing the baby who was on it.

"The infant had been placed somehow in a soft cushion chair, and the suspect allegedly, in an apparent intoxicated state, sat down in the chair where the infant was laying and passed out in the chair," Detective Steve Goodale of Kentucky State Police told WLKY.com.

Investigators said it's unclear how long Cull stayed on the infant, who was deceased when police arrived. Autopsy results are pending.

Police are also awaiting results of a toxicology report on David Cull. Investigators said he may have been intoxicated on prescription medication at the time.

"His lips were purple, and he had four purple stripes down the side of his face,” Xavien's grandmother, Donna Marie Cull, told WLKY.com. “I blew in his face and he wouldn't breathe. His hands were clenched, and he was cold."

David and Donna Marie Cull had custody of Xavian and his 5-year-old half-sister, WLKY.com reports.

David Cull is being held at the Carroll County Regional Detention Center.

Click here to read more on this story at WLKY.com.

The Associated Press contributed to this report.