So perhaps a trusted friend or family member or two could stay with him/her for a week or two and help assess whether the threat is indeed serious or if paranoia in some form has set in.
As I read the original post, my initial thought was also some sort of psychotic episode, perhaps a nervous breakdown, which often produces acute paranoia. This does not mean that Falconspeed is a bad person, but perhaps -- just perhaps -- there is another issue going on.
I witnessed two people have a nervous breakdown, one in college and one in law school. They were both overstressed due to academic overload and other things going on in their lives, and both were convinced they were being stalked. They both dropped out of school although one of them returned the next year. I also had a good friend (now deceased) who became increasingly paranoid in her late thirties. She was convinced that her husband hired someone to stalk her and that the stalker deliberately pushed her off a trail while skiing, causing her to break her leg. Her paranoia became so debilitating that she was institutionalized off and on for several years. I later found out that her father also suffered from paranoia as an adult.
On the other hand, perhaps Falconspeed is being followed. I would like to know whether he is involved in a personal injury lawsuit or recently filed for or is receiving unemployment or disability insurance. If so, then the stalker could be a private investigator.
This is worthy advice, well worth considering.
IMO, the thread could have done without the story that preceded it, since it will not help and could add harm.
This person asked us for help. Those who have none, kindly don't offer fear.