THAT LED TO THE DEATH OF A MICHIGAN TEENAGER. JUST AS CORRESPONDENT KEN DELANEY HAS THE LATEST. >> TONIGHT IN U.S. CUSTODY, APPEARING IN FEDERAL COURT TODAY. THEY RAN AN EXTORTION SCHEME THAT TARGETED 100 PEOPLE, INCLUDING JORDAN DUMAIS, 17- YEAR-OLD HIGH SCHOOL ATHLETE FOUND FOR COLLEGE WHO SHOT HIMSELF TO DEATH LAST YEAR. HIS MOTHER LIVING ANY PARENT'S WORST NIGHTMARE. >> THE ENTIRE SITUATION HAS BEEN AWFUL. THERE ARE SO MANY EMOTIONS INVOLVED WITH GREED. I HAVE SOME DIFFICULT MOMENTS, BUT AT THE END OF THE DAY, WE WERE ABLE TO GET ANSWERS AS TO WHAT HAPPENED AND A LOT OF FAMILIES DON'T GET THAT. >> Reporter: AFTER THE FBI TRACKED THE SUSPECTS, THE TRANSFER FOR CONVINCED THE NIGERIAN GOVERNMENT TO EXTRADITE THEM. >> IT IS ABSOLUTELY INCREDIBLE WHAT THE DEPARTMENT OF JUSTICE AND OUR FBI DID TO TRACK DOWN THESE INDIVIDUALS, ARREST THEM AND GET THEM HERE. WHAT A 22-YEAR-OLD SAMUEL AND HIS 20-YEAR-OLD BROTHER ARE CHARGED IN A FOUR COUNT INDICTMENT. THE OTHER IS FACING A MANDATORY MINIMUM OF 30 YEARS IN PRISON. THEY YOUNGER, FIVE YEARS. >> MAKE NO MISTAKE, CHARGES BROUGHT AGAINST SUBJECTS OUTSIDE OF THE U.S. ARE RARE. SECURING EXTRADITION OF THE SUBJECTS IS EVEN MORE RARE. >> Reporter: THE INDICTMENT SAYS THE MEN POSED A YOUNG WOMAN ON INSTAGRAM TRACKING UP AN ONLINE RELATIONSHIP EVEN AS THEY GATHERED INFORMATION ABOUT HIS SCHOOL, FRIENDS AND FAMILY. AFTER TRICKING HIM INTO SHOWING EXPLICIT PHOTOS, THEY THREATENED TO BLAST THEM OUT TO FRIENDS AND RELATIVES, UNLESS HE SENT THE MONEY. THE ACCUSED USING THE NAME DANNY ROBERTS WRITING, I HAVE SCREENSHOTS OF ALL OF YOUR FOLLOWERS AND TAGS. I CAN SEND THESE TO EVERYONE AND YOUR FAMILY AND FRIENDS UNTIL IT GOES VIRAL. ALL YOU HAVE TO DO IS COOPERATE WITH ME AND I WANT EXPOSE YOU. ARE YOU GOING TO COOPERATE WITH ME? JUST PAY ME RIGHT NOW AND I WANT EXPOSE YOU. >> ASKS, HOW MUCH? >> Reporter: THEY REPLY $1000. NOT ENOUGH TO SATISFY HIS TORMENTORS, ACCORDING TO THE INDICTMENT. THEY ADDED, GOODBYE AND ENJOY YOUR MISERABLE LIFE. REPLYING, AND KILLING MYSELF RIGHT NOW BECAUSE OF YOU. THE SUSPECTS, GOOD, DO THAT FAST OR I WILL MAKE YOU DO IT. I SWEAR TO GOD. PROSECUTORS SAY THERE IS MORE TO COME. >> THERE ARE NUMBERS OF OTHER SIMILAR EXTORTION CASES THAT THE NIGERIAN GOVERNMENT IS COOPERATING WITH THE U.S. DEPARTMENT OF JUSTICE AND FBI ON IN TERMS OF INVESTIGATING AND TRYING TO SECURE JUSTICE. >> Reporter: JORDAN'S MOTHER WANTS PARENTS TO TALK TO THEIR KIDS ABOUT THE RISK OF SHOWING EXPLICIT IMAGES. >> THEY NEED TO TALK ABOUT SEXTORTION. IT HAPPENED TO A SENIOR AND IT CAN HAPPEN TO YOUR KIDS. IF THEY HAVE ACCESS TO THE INTERNET AND SOCIAL MEDIA, THEY CAN BE A TARGET. CONVERSATIONS AND LET YOUR CHILDREN KNOW THAT IF THIS DOES HAPPEN TO THEM AND EVEN IF THEY PROCEED, GO TO AN ADULT. IT HAPPENS SO QUICKLY THAT YOU DON'T EVEN SEE IT COMING. >> JOINS US FROM D.C. HOW BIG A PROBLEM IS THIS NATIONWIDE AND WHAT ARE AUTHORITIES GIVING TO PARENTS? >> Reporter: FBI OFFICIALS SAY THAT THERE ARE THOUSANDS OF CASES A YEAR. IT HAS GOTTEN SO BAD THAT THEY ISSUED A PUBLIC SAFETY THREAT ABOUT IT. AUTHORITIES SAY THAT IT'S IMPORTANT FOR PARENTS TO TALK WITH THEIR KIDS ABOUT THE RISKS OF SHARING EXPLICIT PHOTOS. IF THEY ARE TARGETED, THE FBI SAYS, SAVE THE MESSAGES AND REPORT IT IMMEDIATELY. IT IS HORRIBLE, IF EXPLICIT
