carolina where he set them on fire and abandoned the car in tennessee. >>> the news4's i-team's tisha thompson reported the break in the case and has details on what happened today. tisha? >> pat and chris, today the fbi said it's received at least 350 tips about bishop since naming him to its ten most wanted list in april. but one tip from alabama has the fbi doing something it's never done before in this case. exhuming the body of a man buried without a name. a warning, we're showing a picture being used in the investigation some might find disturbing.

and now, tisha thompson tells us about it. >> the fbi put bishop on the 10 most wanted list and since then the agency has received hundreds of tips and tomorrow, one of those tips will lead to a bodying with being exhumed in alabama. we will show you why. you will see a photo that could be disturbing. long time state employee, william bishop killed his family with a sledgehammer and wrapped their body in blankets and used the station wagon to north carolina and set it on fire. officials found it about a week later in the grade mountain ochs tennessee. bishop had banished. the fbi wants to know if this man known as john doe could be bishop hit and killed by a car walking along the highway in scottsdale, arizona. both men have cleft chins, distinctive no, sir and thin lips and similar hair and sideburns. john doe appeared thinner and older than bishop. the fbi says if bishop spent several years living on the streets and running from authorities, he likely would have appeared older and thinner. >> we learned the fbi plans to exhume the body of john doe as early as tomorrow morning so the

tisha thompson with the news4 i team is in bedford, virginia with exclusi det about this investigatio >> r wendy, the press conf just wrapped up a little over an hour ago, and detect named richard allen welch senior as a second person of interest. he is the unel ankle of lloyd lee welch jr., earlier named a pers of intert in february. publ records show the uncle lives in hyattsville, maryland, and detec say he was a securi guard at wheaton plaza when the lyon girls disappeared. news4 i-team has learned a half dozen ppl have come forward since february, all saying they we approd by a man with a badge who accused them of l of these people were teens at thtime, and said he tried to grab them and pull them towar the parking lot. all of these -- including one incide that happened about two years after the lyon sisters disapp s go back in time. 12-yead sheila and her 10-yead sister, catherine, we last seen at wheaton plaza, march 25th, 1975. they we walking to their home which was about a

. >>> the news4's i-team's tisha thompson first reported the break in the case and has details on what happened today. tisha? >> pat and chris, today the fbi said it's received at least 350 tips about bishop since naming him to its ten most wanted list in april. but one tip from alabama has the fbi doing something it's never done before in this case. exhuming the body of a man buried without a name. a warning, we're showing a picture being used in the investigation some might find disturbing. with shovels and a backhoe, the fbi dug up secrets that until now have been buried in this alabama grave for 33 years. >> as any fugitive is, they have to be somewhere, and he could very well be buried behind you here. >> reporter: the fbi says it decided to dig after comparing photos of william bradford bishop and a man known as john doe, buried here in 1981, after he was hit and killed by a car while hitchhiking on a highway. >> the similarities are unbelievably close. >> reporter: the montgomery county sheriff has spent his entire year searching for bishop and says this is the closest resemblan

tisha thompson with the news4 i-team is live to put this toge for us tonight. tisha?n, like so ma people in our area, i grew up in the montgomery area in t late 70s and early '80s and it's really hard to explain how this case in particular rocked our community. especi for

tisha thompson on our live desk. tisha? >> wendy, this is an aggressive move by the fbi.he agency tries to hunt down americans fighting alongside isis. listen to this quick clip. >> they lie! they'r

tisha thompson on our live desk. tisha? >> wendy, this is an aggressive move by the fbi. the agency tries to hunt down americans fighting alongside isis. listen to this quick clip. >> they lie! they're lying! we are the -- >> take a closer look at that face. the fbi says this man appeared in a video in which purported prisoners are seen digging their own graves. and then he later presides over their executions. fbi director james comey says the man has what's believed to be a north american accent, and the agency believes that there are about a dozen americans known to be fighting in syria with isis. the hope is that this video will trigger something, a tip, from an american in our community who will help identify the man. there has been more of an effort of late to stop americans from leaving the country to fight with isis. just last weekend, a 19-year-old man from chicago was arrested before boarding a plane. jim, wendy, back to you. >> tisha, thanks. >>> storm team 4 keeping a close eye on the radar tonight. a live look outside as we have some potentially strong storms

tisha thompson with the news4 i-team is live to put this toge for us tonight. tisha? doreen, like so ma people in our area, i grew up in the montgomery area in t late 70s and early '80s and it's really hard to explain how this case in particular rocked our community. especi for parents. because be kids could walk home alone. afterw, people could not unde how two blonde sisters cou just vanish like that. w 39 years later, it looks like they are the closest they been. but police say they need your help. >> montgom dets say d allen welch senior was a security guard near whean pla in the 1970s. >> our feeling is we're cl to resolution than we have ever been. police say he is out 20 years older than his nephew, l lee welch jr., who also went by the name michael, named a person of interest earlr ts year in february. the news4 i-team has learned that at le a half dozen peop have now come forward since febr, all saying they were approd by a man with a badge at wheaton plaza, who accuse them of stealing, and tried to grab them. at lea one of these incidents happ two years afte

tisha thompson and the news4 i-team broke the story yesterday. she is here with more including who tipped off the fbi in the first place. tisha? >> doreen, in april the fbi put william bradford bishop on its ten most wanted list. agents said they needed the public's help finding the man who vanished after murdering his entire family in maryland ten years ago. today we met the man who put the clues together in what investigators are calling their best lead yet. a warning, though. we are going to show you a picture crucial to the case that some might find disturbing. it takes a really good tip to get the fbi to exhume a body. and jeremy collins had a really good tip. >> we rely on the public and individuals like mr. collins to come forward and to share what they know. it's those little pieces of information that may not seem like anything to you. but in the big picture, it may be that one piece of the puzzle we need to put the case together. >> reporter: collins lives in scotts boro, alabama, where for 33 years this grave has confounded local police