Colorado resident Chris Watts has continued to fascinate those who follow true crime since he admitted to killing his pregnant wife, Shannan, and their two young daughters, Bella and Celeste, in 2018. Subsequently, Watts was convicted of five counts of first-degree murder and other lesser charges. Now, someone close to the killer is speaking out about what his life is like behind bars and how he feels about his future leading up to his 35th birthday.

According to People, Watts has started "becoming resigned to the fact that he will spend the rest of his life in prison. Currently, he is serving multiple life sentences without the possibility of parole.

"Nothing changes," said a source, adding, "Every day is like the day before, and every day in his future will be the same as today."

Continuing, they revealed a bit more about Watts' outlook at this time. "He knows that this is his life. There really isn’t much hope for his future," they said.

READ: Chris Watts Update: Investigator, Detective Discuss Dealing With Trauma A Year Later

As stated by the publication, he is on lockdown for 23 hours a day at the prison. While he is allowed to leave his cell for short activities, such as showering or exercising, he is limited when it comes to doing other things. It has also been said that he keeps family photos and a Bible inside his cell.

Leading up to the recent report, the discussion surrounding Watts and his crimes has continued in a variety of ways. Once he started serving his sentence, he began sending "chilling" letters to author Cheryln Cadle for her 2019 book, "Letters From Christopher: The Tragic Confessions of the Watts Family Murders." At that time, he reportedly told Cadle that he attributes his crimes to a "darkness" inside of him, but also believes that his former mistress, Nichol Kessinger, played a part in what transpired.

Previously, Watts' life in prison had been described as "his own private hell," while other reports signified that he has continued to receive visits from female admirers since beginning his sentence.

Chris Watts Men
Chris Watts is pictured in court for his arraignment hearing at the Weld County Courthouse on Aug. 21, 2018 in Greeley, Colorado. Getty Images/RJ Sangosti