Well, I've seen a wide variation of logic puzzles that use grids, though they can go under a wide variety of names(and since Tam is from canada her schooling could have varied quite differently then ours) But I"m more familar with the term just as a murder mystery term period, typically just as an alternative name of the genre. But I grew up knowing the term because of my grandmother who constantly read them when I was little XD.
Edit: Pic of the type of Logic puzzles I see in word puzzles
http://www.pinkpt.com/wp-content/upload ... nchart.gif only difference is the clues are not shown to the side, so you can't actually solve this particular one.