Ortiz Deion Smothers, Jr., (pictured) was sentenced to life in prison for the murder of his four-month-old son

A Georgia man has been sentenced to life in prison for murdering his four-month-old son in 2017 just hours after complaining about the child on Facebook.

Ortiz Deion Smothers, Jr., pleaded guilty to one count of Felony Murder in the Houston County Superior Court on Monday morning.

The 23-year-old was sentenced immediately after his plea and was given a life sentence in the state penitentiary with the possibility of parole.

Smothers will be eligible for parole after serving a minimum of 30 years.

The horrifying incident happened on the morning of June 12, 2017 in the city of Perry.

Smothers and his son, Omar Smothers, were reportedly staying at a cousin's house at the time.

Smothers was the sole caretaker starting around 7.30am and began posting his frustrations on Facebook shortly after.

Pictured: The house in Perry, Georgia, where Smothers was staying with his cousin at the time of the incident

'Omar was being the biggest cry baby right now, and I’m tired,' Smothers wrote, according to The Macon Telegraph.

At 10.33am, he said: 'Jr done went back to sleep — guess I’ll gas up.'

The police report identified 'gas up' as smoke marijuana.

Shortly afterwards an adult and other children in the home, 'awoke to the baby scream and the accused come in and advise ... to call 911.'

Following his death, Ortiz Smothers Sr. mourned the loss of his grandson (pictured) in a Facebook post

Omar was reportedly unresponsive and the side of his head was beginning to swell.

Authorities were dispatched to the home at 10.50am and Omar was taken to Navicent Health's pediatric I.C.U.

Doctors determined that the child suffered multiple bilateral fractures in his skull and believed the injuries were not consistent with any sort of accidental cause.

Rather, they believed the injuries to be deliberate.

On June 13, Omar was pronounced brain dead and taken off of life support.

The Houston County Sheriff's Office led an investigation into the death and found that Smothers was the only person with Omar during the time of the injuries.

Smothers Sr. : 'Today would have been your 1st Birthday Omar your grandfather will never forget u and sorry we didn't get to bond like we should have your short time here'

Several witnesses said that nothing was wrong with the child earlier that morning before Smothers was left alone with Omar.

The arrest warrant said Smothers had a bad temper.

The Macon Telegraph reports that witnesses admitted to seeing or hearing Smothers, 'strike the child and cuss at the child.'

Ortiz Smothers Sr., wrote a Facebook post two days after Omar's passing to mourn the child.

He wrote: 'I have been pretending this was a dream but I keep waking to the same results. Omar Cortez Smothers u have gained your wings way too early. Love u and sorry we didn't get to do grandad and grandson stuff. R.I.P.'

Smothers Sr., also commemorated the child's first birthday in a post.

'Today would have been your 1st Birthday Omar your grandfather will never forget u and sorry we didn't get to bond like we should have your short time here,' he said.