Are there humans walking among us that are actually demons?

Many entities are walking with us all the time. You have individuals who are demon possessed, and within this spectrum, you may also have perfect possession. You have entities that survived the flood of Noah, particularly cave-bound or sea-bound. There are also lost spirits among us who do not want to cross over due to unfinished business. Some of these malevolent souls will haunt and hurt individuals, and sometimes may even kill. We also have light angels and dark angels acting upon what they were created to accomplish. Lastly, due to individuals opening portals who do not understand what they are doing, they are allowing other types of interdimensional manifestations to be released onto our plane.