greg reese video - https://www.bitchute.com/video/MaPcbAkRELfu/
here's another one thats a good example - https://www.bitchute.com/video/wqvSrsOb44nl/
cant verify anything so it might just be fake and or gay but still weird non the less. Shit reminds me of that movie called The Ring
Probably some sort of seizure. Before jumping to supernatural explanations, you should try and track at least one of those persons and investigate if he/she had any epilepsy or other such condition.