There are no words for this to adequately describe how horrible it is.
One can only ask that Jesus comes back quickly.
One of the ways Jesus can make a “come back” is through faith on earth. Jesus asked rhetorically if He would find faith on earth when He (literally) returns; this seems to imply the answer is no.
He’s holding back for all the souls that God knows still need salvation. No matter their years on earth, both that boy and his killer will have to face the same Judge. I am learning that it is wiser and wiser to defer to God’s wishes.