Jodi Arias Trial News Update: Inside Look at the Crime Lab That Processed DNA in the Murder Case [Video]

The case surrounding Jodi Arias' first-degree murder of her ex-boyfriend Travis Alexander in 2008 has captivated the nation.

After a highly publicize trial, the 33-year-old California native was found guilty on May 8 in Alexander's ghastly death. In the beginning of the case, Arias denied that she was with her ex on the night that he was murdered in his suburban Phoenix, Ariz. home. However, forensic evidence submitted to the case told a different story.

In an exclusive new story, Arizona's 3TV recently took viewers inside the forensic lab that analyzed all the evidence in the Travis Alexander murder case. The evidence, which was examined by Mesa Forensic Services, ultimately led to Arias' conviction.

According to the evidence, before Arias killed Alexander, the couple spent an intimate evening having sex and taking erotic photos. At some point the night turned tragic and Alexander was stabbed over 20 times, nearly decapitated and shot in the head. After the crime scene was processed, forensic scientists began to piece together the chain of events that led to Alexander's death.

"It came down to, at that crime scene, documenting that scene. You don't know what's important. But visually, it's your one chance to see what's in the scene," Kimberly Fiorucci, the Administrator of Mesa Forensic Services, told 3TV. Lab techs were given all of the evidence collected at the crime scene and began looking for DNA to see who they could place at the scene when Alexander was killed.

In addition to the DNA that linked Arias to Alexander's home on the night of his murder, Arias' bloody hand print was also discovered on a wall of the house along with strands of her hair. Because the evidence was so compelling, Arias was forced to changed her story, confessing that she was at the murder scene.

Later on, Arias invented a story that masked intruders killed Alexander but spared her life, reports Fox News. Once again the DNA evidence was used to prove that that was not true. Eventually, Arias admitted to killing Alexander, but argued that she did it in self-defense.

The DNA, photos and evidence taken from the crime scene convinced the jury that Arias was guilty. However, the same jury failed to reach a unanimous decision on her sentencing. As a result, a retrial will be held later this year to determine whether she should be sentenced to death, life in prison or life with a chance of release after serving 25 years.

When asked what the odds are that DNA could be inaccurate, Fiorucci said, "We're talking in the quintillions. Over a million times the Earth's population."