An Arkansas Department of Correction inmate serving a first-degree murder charge out of Jefferson County at the Brickeys Unit has committed suicide, marking the third such event this month at the facility, according to a news release from the Arkansas Department of Correction.

At 3:30 a.m. Saturday, staff at the East Arkansas Regional Unit in Brickeys observed inmate William Childress hanging in a locked single-man cell, the news release said.

Childress pleaded guilty to the July 2014 deaths of Anthony Branch, 62, and Deborah Moncrief, 58, at a house in the 6300 block of Cowboy Drive.

Responding correctional officers and medical staff were unable to detect a pulse, and Childress was pronounced dead at 4:07 a.m., according to prison officials.

The Arkansas State Police was immediately notified and responded to the unit. ASP will be conducting an investigation into the death. The Department of Correction will be conducting an internal investigation into the death.

Childress was a 25-year-old white male serving a 70-year sentence, according to the ADC.

On April 13, prison officials said inmate Gavin Loverin was found hanging in a locked single-man cell at around 12:28 a.m. In a similar incident on April 11, the ADC said prison employees at Brickeys saw inmate Robert Ivy hanging in a locked single-man cell.

In both cases, according to the ADC, responding correctional officers and medical staff transported the men to the unit infirmary for emergency medical treatment, where both were pronounced dead.

As in Saturday’s case, Arkansas State Police was immediately notified and responded to the unit, the ADC said. ASP is conducting an investigation into the deaths, and the Department of Correction will be conducting internal investigations.

Ivy, 37, was serving a five-year sentence out of Stone County for possession of a controlled substance, the news release said. Lovrien, 38, was serving multiple sentences for domestic battery, theft of property, escape an being an habitual offender out of Sharp, Independence and Cross counties, according to ADC records.