Dateline: Dateline: The Phantom - 5 harrowing details about Kristil Krug's murder, revisited

Dateline's two-hour special titled The Phantom recounts the chilling true story of a Colorado mother of three, Kristil Krug, who was discovered dead in her garage in December 2023.

Kristil was terrified by the anonymous letters she received a few weeks before her death, which felt like the plot of a thriller movie.

The episode shows how these threats led to real violence and how the police managed to unravel the case. Investigators followed a trail of suspicious emails, burner phones, and camera footage to reach a suspect that no one anticipated.

Dateline reveals the way that technology, betrayed trust, and unexplained violence collided in this tragic story through police videos, family interviews, and critical courtroom moments. The episode shows how online bullying can sometimes prove fatal.

Kristil Krug’s stalker wasn't a stranger

Dateline: The Phantom | Image via: Peacock Productions

What at first appeared to be a stranger stalking Kristil Krug was actually a conspiracy from within her house. Her husband, Daniel Krug, allegedly posed as her former boyfriend and sent the threatening letters and emails himself.

Prosecutors theorized that he was trying to frighten her, only to intervene as the 'savior' at the last minute. It was a disturbing gimmick since he exploited their intimacy and took advantage of her trust.

Kristil Krug had to live in fear

Weeks before her demise, Kristil Krug had recorded the harassment. She provided the police with the messages, photos, and a detailed list of all the incidents. Police video and body-cam shots reveal how concerned her family was. The records were later used as a key aspect for developing the structure of the Dateline episode. They cast light on how someone she loved was using technology to intimidate her and her children.

An ambush in the garage

On December 14, 2023, Kristil Krug arrived home after dropping her children off at school. Soon after, she was assaulted in her garage. Investigators allege that the killer struck her with a heavy object and then stabbed her to death. They also discovered that at least one of the security cameras around the house had been covered or disabled. This is a clear indication that the attack was well planned and not a spontaneous act.

The digital breadcrumb trail that cracked the case

Although no DNA could directly link Daniel to the crime scene, prosecutors paid attention to digital evidence. They discovered that the threatening email account was created from his work computer. Store purchases and phone records also helped them trace a burner phone to him, which was used in the harassment. Minor bits of digital evidence, such as a work log-in, a receipt of a gift card, and the file traces that he had erased, ended up revealing his plan and linking him to Kristil Krug’s murder.

Verdict, sentence, and the family left behind

Daniel Krug was convicted of first-degree murder, stalking, and impersonation. He was sentenced to life imprisonment with no possibility of parole.

The trial might be over, but the agony is not. Kristil Krug's family is still in the process of coming to terms with the profound grief of her murder and the shock of the betrayal that led to the crime.

The Dateline episode is devoted to their narratives and depicts how technology can have dangerous consequences in real life.