crossed over to the mexican side. they were lost for a while. they were trying to connect with the doctor that was supposed to perform that medical procedure and more than two hours later, that's when the dramatic video was shot that shows the kidnapping of the americans at gun point and authorities say there that they tried to trace that vehicle using surveillance cameras, but the trace went cold until they got a tip yesterday morning. they say they followed that tip. that tip led them to a wooded house outside of matamoros mexico and that's where they found the americans and they did not find the individuals involved in the killing instead an individual performing surveillance. this man, a 24-year-old from matamoros, mexico, was arrested and authorities are not saying whether he's linked to organized crime or the cartels in this area, but jim and erica, still so many questions about what transpired here and of course, what justice will look like.