.... Marshall Dietz appears to have given up because he came to believe by his research and the comments from others that the "real kidnapper" was DeBardeleben and that he was behind the ransom....
...I feel he may be wrong about DeBardeleben and he needs to come back here to help.
The Ransom Caller has never been identified, so it is anyone's guess as to who he was and what his motives were. There are a number of possibilities, the most prevalent being that it was a hoaxer who jumped in after hearing and reading about the missing girls and who enjoyed taunting the Lyon family and police.
It is possible, however, that he actually did have something to do with the girls' disappearance - or had knowledge of the actual perpetrators, and hoped to either make some quick money, or simply harrass family and police.
DeBardeleben was certainly an evil character who was involved in a wide range of criminal activities. But one would have to question his motives and look at his past behavior to see if making ransom calls or perpetrating hoaxes were something he had done before or after this time frame.
Making a call for any reason, such as to request a reward or ransom, puts the caller in a position of suspicion. It is a risk, because he is calling attention to himself. Obviously, to demand a ransom is to state that you actually have the missing person and can trade her for money. This is true whether or not the caller was actually the kidnapper.
In considering who might have made the ransom calls, consider some of the potential suspects and their behavior. Most would not care to associate themselves openly with any of their crimes or suspected crimes. But there were a few in this case who came to the attention of LE BECAUSE they talked about the Lyon sisters and indicated that they knew something about their disappearance. Those persons would be Raymond Mileski and Lloyd Lee Welch, Jr.
I am not saying positively that either one of them was the ransom caller, only that their personalities and actions were somewhat consistant with the caller in that they both claimed to know something about the case at one time or another.
Milieski was in prison for the 1977 murders of his son and wife and by 1982, the Montgomery County Police had dug up his Suitland, Maryland back yard searching for evidence or bodies because he had allegedly told fellow prison inmates about being involved in the girls' abduction. Then in 2001, he was again offering to talk to MCP about the case in exchange for a prison transfer.
Lloyd Welch, also a prison inmate, is believed to have told a cousin about being at Wheaton Plaza the day the girls went missing, and has been named a Person of Interest by MCP. It is very possible that he called in a tip to MCP back on 1 April 1975, as he told his step mother was his intent. MCP has his Hyattsville address for that date in their files as being given to them by Lloyd.
A potential hoaxer might be the unnamed Prince Georges County man who called MCP claiming to be a Tape Recorder Man seen at Iverson Mall/Marlow Heights Shopping center (but who "Never" did his TRM thing in Montgomery County). He might have been telling the truth or might have been seeking some sort of attention or involvement in the case. Is it possible that he had earlier made the ransom calls?
I am sure that there were quite a number of hoaxers and crank callers in the days and months following the girls disappearance. The Ransom Caller might have been just one of them. Or he might have actually been involved in the girls disappearance and making a rather clumsey attempt to profit by it.