I get a lot of crazy comments so yours was deleted almost immediately. On further thought, your thought of being in immediate danger must be taken seriously. You present an interesting conumdrum. How to advise you and how to get your DNA known. Here's what I think would be the best choice.
1. Get some 10 cotton swabs and rub the inside of your cheeks (make sure to get a good sample). Lay them out on a dry clean paper towel to dry. Once dry put them in 5 clean, new, small brown paper lunch bags. Label and sign them as being yours on the bags. Fold each bag and put in a legal size envelope. Address 3 to your closest friends or your lawyer and address the 4th to the local District Attorney. Give your friends their samples, put stamps on the 4th and hide it in a place that will be found after you are gone in case your stalkers are successful.
Take the fifth bag and store it a home and go to the internet and send after a $79 kit to have your DNA profiled. They will probably want TWO samples as the paternity test is the cheapest, so have a close male relative supply the other sample. After you get the sample back, email me or send the sample in a comment to be posted on the blog.
2. Go directly to you local police department and make a report of the danger you are in. Most criminals know enough to leave you alone once you have drawn the attention of the police.
3. Have your DNA compared to all those on the site to see if you are related to any of our known and published samples. I will also compare any samples that may have been kept confidential.