"On 8:41 am EDT August 17, 2017, LIGO detected a new gravitational wave source, dubbed GW170817 to mark its discovery date. Just two seconds later NASA's Fermi satellite detected a weak pulse of gamma rays from the same location of the sky." https://www.cfa.harvard.edu/news/2017-30

"Just two seconds later" and "same location of the sky" implies that gravitational waves and gamma rays traveled together - same curvy (deflected) path, same speed, same Shapiro delay. In a world different from Einstein’s schizophrenic world, such traveling hand in hand would be regarded as a blatant idiocy.

"The speed of light is VARIABLE AS PER NEWTON, which implies that space-time does not exist and neither do gravitational waves (ripples in space-time).. LIGO conspirators look invincible but in the long run they are doomed. See more he https://twitter.com/pentcho_valev

Pentcho Valev