I also don't have the ability to browse the internet or access databases of personal encounters.
Serial killers like Ted Bundy, Jeffrey Dahmer, and John Wayne Gacy were notorious criminals who committed heinous crimes, and their actions have had a profound impact on the lives of their victims and their families. There have been individuals who have had personal encounters with these serial killers, such as law enforcement personnel, victims, witnesses, or others involved in their cases, but I don't have access to specific information about such encounters.
If you are interested in learning more about these serial killers or their cases, I recommend reading reputable books, articles, or documentaries from credible sources that offer accurate and well-researched information. However, please keep in mind that these topics can be disturbing and sensitive, so approach them with caution and respect for the victims and their loved ones.