Florida 'Demonologist' Accused of Tracking Woman by Phone, Boasting: 'Thanks to the GPS Within Her Phone'

A Florida social media creator who describes himself online as a 'demonologist' and 'Grey Hat Hacker' has been arrested after police accused him of accessing women's private information and claiming he could track one woman's location through her phone.

Mark Stephen Asea, 36, of Port St Lucie, was booked into St Lucie County Jail on 30 September on a felony charge of offence against computer users. His bond was set at $35,000 (£26,500), according to sheriff's office records.

Investigators said Asea appeared to boast about locating one woman through her phone's GPS. In a video reviewed by detectives, he allegedly said: 'Thanks to the GPS within her phone, but what did I do?' The case also involves allegations that private passwords, financial information and messages belonging to two women appeared in his social media posts.

Police Allege Private Information Appeared Online

According to a police affidavit, one woman told detectives that Asea published details about her electronic devices, banking activity and recent online purchases. In one video, he allegedly referred to her password and said: 'How about we talk about the last 10 purchases you made online?'

The woman told investigators that the password had only been shared in a closed TikTok group chat. Asea was not a member, she said, although she suspected he may have used a fake account to access it. She also said she did not know how he could have obtained her phone identification number or banking information.

A second woman said she had allowed Asea remote access to her computer in October 2025 while he helped troubleshoot an application. Months later, she alleged that he claimed to have installed a virus that allowed him to view information on the computer without her knowledge.

The woman also reported that a photograph from a private Telegram exchange later appeared in one of Asea's TikTok posts. According to the affidavit, Asea claimed the image came from WhatsApp, but she provided investigators with a screenshot showing it in the Telegram conversation.

Video Contained Alleged GPS Claim

Investigators said they found videos in which Asea appeared to discuss finding the second woman's location through her phone. In one recording, he allegedly said: 'Thanks to the GPS within her phone, but what did I do?', according to the affidavit.

The affidavit also states that Asea uploaded more than 100 TikTok videos mentioning one of the women, sometimes posting as many as six in a single day. Investigators alleged that he also posted a photograph of the woman receiving a tattoo on a website.

The affidavit does not establish whether Asea successfully tracked the woman's movements.

Earlier Stalking Case Was Dropped

Asea was initially arrested in April on stalking and computer-related allegations. Prosecutors dropped those charges in May, according to court records.

He also faced a separate civil stalking protection case during the summer. A woman obtained a temporary injunction against him in July, but a judge dissolved the order and dismissed the case on 8 September.

Prosecutors reopened the criminal case on 24 September and filed the current computer-access charge. Records do not explain why the earlier charges were dropped or what prompted the renewed prosecution.

Asea was booked six days later and is due to appear for arraignment on 19 November. Asea has not been convicted of the current charge and is presumed innocent unless proven guilty.