Young Hispanic man murdered for pick up truck

Young adult by the name Andrew Loza was murdered early Thursday night around 8pm while leaving a convenient store at the intersection of mac Arthur and pioneer in Irving Texas. Irving pd are strictly in search of any other possible signs that would lead up to the murder at he moment all that has been released is that the victim walked out the store and was walking toward his truck while a guy dressed in all black approached him from the back and demanded the keys to the truck words were exchanged and from a store video camera you see the two arguing and eventually start to fight the theif then pulls out what appears to be a switch blade knife and slit the victims neck nearly decapetating the victim. As of now no other information has been released irving police is asking for any one to come forward with any type of information that could help solve this murder