I don't think there is a specific term, but I would suggest polytheocide.
Extermination
Homicide is the deliberate and unlawful killing of one person by another. Multiple is more than one.
As specific targets? No.
Yes, the movie "Texas Killing Fields" is loosely based on a real place in Texas where multiple murders occurred. There is no specific book directly tied to the movie, but there are books on true crime cases that have taken place in the Texas Killing Fields.
one concern is, that many pesticides are killing multiple insects
Holocaust
ACUTE: injury/condition caused by a specific even CHRONIC: injury/condition developed over multiple events or prolonged time periods examples: ACUTE: I stepped off a curve, rolled my ankle and now it is swollen and killing me! CHRONIC: I work at a computer 40 a week for about 4 months now and my neck is KILLING me!
Regicide would be the specific term for killing a king. Assassination would also be appropriate for killing of any important figure, not just a king.
Holocaust
Killing machine king cobra kool killers
This could have a number of meanings, none likely to involve any violence. The dream probably dramatizes the expression, "She's killing me!" This might describe a terrific joke or hilarious behavior. Alternatively, it can describe intense disappointment and betrayal. Again, it can relate to competition, as is, "She's killing me in tennis." Or it might have monetary meaning: "She made a killing in the stock market." One more comes to mind - she may be so beautiful that "she's killing me!" In all of these possibilities, the dream takes a figurative expression and presents it as a literal, concrete act.
its like the feeling you get when someone shoves poison down your throat, killing you slowly