Ethan Crumbley, Who Killed 4 in Michigan School Shooting, Sentenced to Life The teenager, who committed the deadliest high school shooting in Michigan history, will not be eligible for parole. Author: Stephanie Saul and Anna Betts Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)MoreClick to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)