Excuse me for just walking in but I've been listening at the door for a while...
I've googled and can't find any instances of 18 year old men being abducted. I know if there ever has been, someone is sure to find it and post it here.
Under what circumstances, for what reasons would an 18 year old male be abducted, any ideas? Apart from a ransom I cannot think of any.
First- the caveat that I think that the most likely scenario is that Joseph left the road to relieve himself or run on a trail instead and became ill or injured.
Secondly- I believe the account that his running partner gave makes perfect sense. Also, it'd be a full hour before his friend would have realized that Joseph didn't just decide to take a different route or had headed back early.
However, I do think there's a slim possibility he met with foul play while he was running. Here is a short list of serial killers in the U.S. who targeted only men, often young men. This isn't exhaustive and doesn't include killers like Isreal Keyes etc. whose victims were randomly targeted regardless of gender and age:
John Wayne Gacy killed and sexually assaulted at least
33 teenage boys
Juan Corona killed at least
25 men who worked as traveling laborers. He buried the bodies on fruit ranches in California.
Patrick Kearney, aka "The Freeway Killer": killed at least
43 young men and teenagers during the 1970s. He picked up young men in gay bars or hitchhikers, before killing and raping them.
Jeffrey Dahmer: killed
17 young men
Herb Baumeister: allegedly killed at least
11 gay men, with the possibility of 9 more deaths. He was homophobic and targeted men he assumed were gay.
Dennis Nilsen: murdered
15 men.
Dean Corll aka the Candy Man: raped, tortured and murdered at least
28 boys in the '70s.
David Edward Maust: killed at least
5 teenage boys (and possibly 4 more).
Raul Osiel Marroquin: killed at least
4 gay men after luring them out of gay bars.
Thomas Dillon: killed at least
5 men, he shot each for seemingly no motive.
Robert Berdella: raped and murdered at least
6 men.
Gary Ray Bowles: killed
6 men.
Ronald Dominique: killed at least
23 men.
Larry Eyler: was convicted of the murder and dismemberment of a 15 year old boy in 1984, he confessed to killing at least
21 other men.
Randy Steven Kraft aka The Scorecard Killer: killed at least
16 men, after raping, torturing and mutilating them. Kraft may have raped and murdered at least 50 more men.