Amanda Knox's murder case has inspired a novel as another update claimed that Italian authorities bungled the investigation.

Author Nina Darton wrote "The Perfect Mother" and she explained why people should care about buying the book in a first-person account she wrote for The Daily Beast.

"First of all, although it was inspired by the Amanda Knox case, mine is a completely different story," she wrote. "The journalists were, quite correctly, writing about the principals in the case: Amanda, Meredith, Raffaele, Rudy Guede. But the larger questions that touch on emotional relationships, truth or lies, appearance and reality, love and trust, mothers and daughters are better cast as fiction."

"In my novel, I wanted to probe further into the complexity of the parent/child relationship, to ask: How well do we know what our children are doing or are capable of? How much are we responsible for their actions? How much can we suspend belief to keep convinced of their innocence?" she added.

Meanwhile, update on the Amanda Knox's murder case revealed that investigators were at the very least negligent with their work.

"Raffaele Sollecito's computer experts clearly showed at trial that investigators chose to completely overlook data retrieved from Sollecito's computer. This negligent computer analysis adds to the growing list of alleged misconduct cited in the long drawn out Meredith Kercher murder case," said Digital Journal.

According to the crime analysis report, the laptop of Raffaele Sollecito was tampered even when he was under interrogation by the police, which means anybody could have made some changes to the hard drive.

"The windows server log shows the computer was used on the morning of November 6 and again in the afternoon while Sollecito was in custody. In fact, there were alterations on more than 520 files after the impounding of the laptop which changed the dates of important files like that of the Naruto cartoon," it said.

But those are not the only incidents that proved the Italian police bungled the investigation into the Amanda Knox murder case. The incidents included, "improper evidence collection, suppression of lab data, cover-up of contamination, and the failure to test a possible semen stain found at the crime scene where a sexual assault had taken place."