After further searching the site the pages came from, I found that this guy who wrote them has received quite a bit of flak about that one, along with kudos about lots of others he wrote. A quote from the Comments:
Melissa
/ April 19, 2013
To Whom It May Concern,
I had a parent waiting for me in the pouring rain this morning to complain about the passage inferencing a husband having an affair. I was appalled to read it and discussed with my teachers not using this website again. Though my teacher should have read the passages more carefully it disappoints me that she would even need to worry that a passage from a reputable site be inappropriate. I hope you will remove this passage immediately so no other families have to deal with explaining something like this to their young children.
Sincerely,
MAZ
Principal, Adairsville Elementary School
Mr. Morton
/ May 1, 2013
All materials on this site are not appropriate for all grade levels. The passage in question is clearly labeled with a warning in embolden text as to the controversial nature of the short text. There is also an alternate text posted beneath it that is more family friendly. I have considered removing this passage many times in response to pressure that I have received from those who distributed the worksheet to classrooms full of young children without reading it first. Though it would be an easy way to relieve the pressure from me, censoring my content goes against my personal ideals. Perhaps in time I will cave in to the pressure and revise the text to make it more family friendly, but I am too busy today. I do not even have time to respond to you as thoughtfully as I would like. Anyway, I’m sorry if the content that I posted to my website brought trouble to your doorstep. It has always been my intentions to help and not harm. I wish you the greatest possible success.
I looked all over the site and could find nothing that looked like any kind of a warning about content, BUT it appears he has caved and revised this sheet with more family-friendly content. He still included the one about "Tommy, I'm going to kill you!" in the mother's thoughts, though. I did find:
CCSS.ELA-Literacy.CCRA.R.1 - Read closely to determine what the text says explicitly and to make logical inferences from it; cite specific textual evidence when writing or speaking to support conclusions drawn from the text.
So yes, this sheet did have to do with CC, just more indirectly. But if quite a few teachers across the country are sending these sheets home for homework for 3rd - 6th graders, what other trash is also going to go home in the name of "meeting CCSS objectives"?