Glee Aired A School Shooting Episode Last Night - Newtown Parents Not Happy

Just four months ago was the tragedy at Sandy Hook Elementary School.  Last night, the show Glee decided to feature an episode where a shooting took place inside its fictional school and the parents in Newtown are not happy about it and received no advance warning save from a letter from the principal at the school which went out to parents just a few hours before the episode aired. Glee is in a ratings dive this season and I understand they would love to see a boost in ratings but this does not seem the right way to go about it. I'm not sure why Ryan Murphy felt the need to go there. Yes, his show is not always sugary sweet innocent fun, but shootings in school is at the opposite end of the spectrum from that. Also, if you are going to do a show like that, then maybe you could wait to next season? Give it a year or so. Maybe they felt four months was an appropriate amount of time.