turns out, he had crossed paths with david strickland before. >> i had interviewed david strickland ing from the park the night of the murder? the tipster was david strickland. >> he came in as a good samaritan wanting to provide information. >> back then, david strickland lived just blocks from the park where the shootings took place. >> and now here he is being mentioned in connection with a guy who's been mysteriously fingered for the murder. >> that's right. >> so, just like that, basically, mr. melchor is no longer the focus of this. it's now david strickland. >> that's right. >> chris melchor went on to explain that he and strickland were no longer on good terms. melchor believed strickland had stolen several of his guns, so he had strickland arrested. >> yeah, the gun robbery put a damper on their relationship. >> strickland pleaded not guilty to the gun sheft charge and was released soon after, but the charges were still pending, and volaman wondered, could strickland have written that letter as some kind of elaborate payback for melchor having strickland arrested? >> i know th