Science fiction story about a kid being abducted and never seen again

"R.J., wake up for work," Mrs. Garbini yelled from downstairs.
It was Sunday morning, and R.J. needed to get up for his weekend job doing construction with his Uncle Joe. R.J. always enjoyed going to work. He and his uncle were very close, and they always had such a good time together. Construction was also something R.J. had enjoyed ever since he was little, even if it was just building something out of blocks. He had a lot of dedication for his job; he was never late, and never called out sick!
About ten minutes had passed, and Mrs. Garbini yelled up the stairs once more, "R.J. come…