"Oh--him," Ernie said, remembering well enough that the person Justin was Head Boy that last year but not knowing that much about him. He had only dealt with him as much as he needed to as he wasn't typically fond of those from Slytherin. There was often too much of a personality difference, after all. He did remember the person as rather reserved but was in many of his NEWT-level classes. "Never would've thought he's the sort who would shag anyone at all. Isn't he a bit odd?" Well maybe the man changed over the past five years.
"But in any case, I don't think I know of any pattern as far as this goes." He did think of the patterns of the two most recent homicides, but that sort of pattern wasn't the best to be speaking of right now. "I'll let the appropriate people know, as needed."