FOX 10 has learned that Phoenix Police are looking into threats made against that juror after her name, address, and personal information were posted online.
A big backlash against the lone holdout on social media: The hash tag #jurornumber17 was trending all day.
Due to the threats made, there are police officers at juror #17's home.
The juror and her family are concerned because people are tweeting out her personal information, including her phone number and address.
FOX 10 did speak with her husband off-camera before officers arrived, and he said his wife was very upset at this time.
"The very fact that people are making death threats and trying to out her, it is not a proud day for any single one of those people and they should be ashamed," said Dr. Dennis Elias.
Dr. Elias is a jury consultant and did not participate in the Arias case. He says juror #17 fulfilled her duty.
"She was incredibly brave and enjoyed five days of pressure like none of us can imagine," he said.
Still, the other jurors say #17 eventually refused to deliberate and may have had her mind made up from the beginning. One juror said #17 called the death penalty a form of revenge.
"Their statements about this, that, or the other thing being the reason are nothing but their own imagination, because they don't know, they are very frustrated and I can understand that," said Elias.
Juror #17 isn't speaking publicly about her decision, but Elias believes it all came down to morals.
"That one remaining juror knew beyond a doubt that if she changed her mind, it was her vote that killed Jodi Arias," he said.
Phoenix Police say the juror requested that officers arrest any trespassers on her property.