[b]Jack the Ripper[/b]: 5 dead
[b]Zodiac Killer[/b]: 5 confirmed dead, 2 injured, 20-28 possibly killed 
[b]Ted Bundy[/b]: 30 or more dead 
[b]Las Vegas Gunman[/b] (who's name won't be remembered): 59 killed and 527 wounded. 

Murder is getting that common, folks.