. >> reporter: edwin reyes martinez arrived from el salvador just about eight months ago and now he's serving a 34 year prison sentence after pleading guilty to not one, but two murders that he was involved in since his arrival. prosecutors say his case shows just how quickly gang violence is growing in montgomery county. police found the body in a shallow grave in germantown two years ago. the vehicle will be tim was a day laborer, 34-year-old marvin vargas osario. prosecutors aren't sure why he was killed. ey initiation. 19-year-old edwin reyes martinez confessed that he was the lookout who kept watch as ms-13 gang members stabbed him 27 times. and he admitted to his part in a second murder. prosecutors estimate that in the last two years, there have been 18 gang killings here. >> still pending case that occurred with some high school boys here recently, i think we're talking 18. >> are you talking about with the twin killing in montgomery village? >> yes. >> reporter: earlier this month, 17-year-old najar and an 18-year-old were killed the night before they were to graduate from no

. >> reporter: edwin reyes martinez is a teenager who has now started serving a 34 year prison sentence. he confessed and pleaded guilty to his role in this brutal ms-13 gang murder. >> this was a savage killing. this was a savage killing. >> reporter: montgomery county's top prosecutor john mccarthy says 19-year-old edwin reyes martinez acted as the lookout for an ms-13 gang murder, he stood watch to alert the killers if about anyone unexpected showed up. the victim was found buried in a shallow grave in germantown with 27 stab wounds. >> massive amounts of the overkill and multiple weapons, multiple assailants. >> stipulate typical of a gang murder? >> sadly the answer is yes. >> reporter: police identified the victim vargas only after the autopsy revealed he had a metal nail embedded in his foot. his family said years earlier he had an accident with a nail gun and could not afford too have it removed. prosecutors say that he was lured into the woods and attacked by as many as five gang members. the motive may have been a gang initiation. prosecutor tor tos say most of suspects are st

. >>> a stiff sentence for one gang member. 19-year-old edwin reyes martinez was slapped with a 34 year sentence. 30 years of the sentence was for acting as a look out while his accomplices stabbed a man to death in august of 2015. reyes martinez was hit with another four years for hiding a handgun man, 24-year-old roberto gutierrez cruz back in november of 2015. a spokesman for the state's attorney in montgomery county says there are still others that need to be caught in both of these crimes. >>> nearly three years of debate. and stiff opposition. and the prince william county supervisors, board of supervisors is finally green lighting a new mosque. the board voted unanimously this morning to approve the mosque that would sit on 14- acres at the intersection of bent hill road and schafer lane. they hold services in a hotel in gainesville currently. chairman of the muslim society board says it will be years before the mosque is open to worshipers. >>> pro-am day at the quicken loans national. >> frank henry is out there with what might be the best moments of the whole week. that's sayi