Their statement that the scientists looked in the direction from whence the particle came, but did not see anything should be self-evident. Whatever caused the

Their statement that the scientists looked in the direction from whence the particle came, but did not see anything should be self-evident. Whatever caused the particle to be travelling at such speeds would still emit light at... the speed of light. They would have had to been looking BEFORE detecting the particle, even if only nanoseconds before.