But let's get to the spooky murder-for-hire plot against justin bieber. Supposedly orchestrated behind bars by a convicted killer. Linsey davis has latest. This is a hard one to believe. Reporter: It... See More
But let's get to the spooky murder-for-hire plot against justin bieber. Supposedly orchestrated behind bars by a convicted killer. Linsey davis has latest. This is a hard one to believe. Reporter: It is. But the police report reads much like a best-selling suspense thriller. An intricate murder plot to kill not only justin bieber, but three other people. And the murder weapon, something the convicted killer used to kill his last victim, a paisley tie. Justin bieber's had his share of obsessed fans. Typically teen and tween girls. Nothing like this 45-year-old man police say was the mastermma mastermind of a bizarre plot to kill the pop star. ♪ I'm coming for you ♪ Reporter: Investigators say dana martin, a convicted killer, currently serving two life sentences in a new mexico prison for killing a 15-year-old girl, came up with an elaborate and grisly plot to murder four people, including bieber, whose referenced in victim three, in this arrest affidavit. Mr. Martin stated victim three had a measure of fame. And he had become infatuated with victim three. This was everyoxemp mri if ied by a tattoo on his leg. Martin had written to bieber several times. And victim three never returned in kind. This slight made mr. Martin upset. With the people who may be obsessed with a celebrity, try to communicate with them -- ♪ do me like you do ♪ -- they my have a very specific reaction, depending on whether they get a response and what that response is. Reporter: According to police, martin enlisted two would-be hitmen. One, a fellow inmate about to be paroled named mark staake. And the other, staake's nephew, 21-year-old tanner ruane. They wan staake and his nephew to kill two people in vermont with a paisley tie. Martin's calling card. They were to head to new york city, where bieber was performs last month, and kill the teen sensation and his bodyguard. But in an unexpected twist, reportedly, police say martin foiled his own plot. Tipping off police that staake and ruane were in vermont. This is what we see in people we would characterize as a sociopath. Reporter: Police arrested both men in vermont. The ne was initially released but then rearrested in new york the next day with what police describe as murder tools and hedge clippers. A relative of the uncle and nephew duo hold the media the whole story is ridiculous and untrue. But police say they recorded phone conversations of the nephew telling marti he was disappointed he wasn't able to carry out the murders. Bieber's manager tells abc news, we take every precaution to protect and ensure the safety of justin and his fans. I had this -- there's details too grisly for morning television.
This transcript has been automatically generated and may not be 100% accurate.