Has Batman ever unintentionally/accidentally killed someone?

In Detective Comics Issue 613 Batman kicks a thug into someone else and they both fall into the grinder on the back of a garbage truck. From his reaction it is pretty clear that he didn't mean to do this.

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Batman accidentally kills The Joker in the end scene of the game Arkham City.

Batman's very first appearance in Detective Comics #27 features what appears to be an accidental killing (although he certainly isn't remorseful).

Unintentional Murder Batman? But of course (the other two mentioned in the piece are covered by Lethal Carrot):

After reviewing the evidence, we can pretty confidently say that Batman is the superhero who holds the record for "accidentally" crushing the most folks to death in junkyards, an oddly specific scenario that so far has taken the lives of three Gotham City residents (that we know of).

The first instance comes in Batman No. 425 from 1988, where the Caped Crusader fights a pissed-off drug dealer seeking revenge after Robin intentionally dropped his brother off a rooftop (we wonder where he learned that trick). After thoroughly lecturing Robin about the sanctity of life, Bat-Hypocrite ends up being chased through a junkyard by the drug dealer and somehow toppling a huge pile of unwanted cars on his ass.

In the campy 1966 movie Batman, Batman and Robin find themselves in the Batcave faced with henchmen of the Joker and/or Penguin, after the Penguin (whom B&R have brought into the Batcave for some reason)

Batman and Robin didn't mean to kill those henchmen, but they certainly did!

Batman later figures out that

This is, of course, the same movie where the One True Batman runs around holding a bomb over his head, trying to get rid of it, but won't throw it in the harbor because of the baby ducks swimming there.

While Batman won't kill deliberately. Dying by the byproduct of their own incompetence or actions is a circumstance that has cropped up in comics.

1. Tim Burtons "Batman" (1989): Batman subdues the Joker by grappling his ankle to a Gargoyle, the weight of which falls and brings him down with it.

2. Batman Begins: Batman successfully subdues R'as Al Ghul on the Gotham Monorail train. While contemplating the idea of "Doing what's necessary" to vanquish his foes, Batman retreats, and leaves Al Ghul to his own demise. "I won't kill you........But I don't have to save you"

3. The Dark Knight Rises: Talia, dies when Batman fires his weapons to bear to stop the league from detonating a fusion bomb forcing the truck to crash.

4. The Dark Knight: Two Face< albeit, not intended, his aim was to save the boy, didn't anticipate Harvey would plummet to his death.

5. Batman V. Superman Movie: Kills several people with an aerial strife and inside a wearhouse when they're killed in various explosions, not to mention the car chase scene where he literally crushes several vehicles.

6. Arkham Origins (Bane) kills him with electrocution and beating. Technically he was dead but he really put him into cardiac arrest; subsequently resuscitated him with electricity.

7. "Final Crisis, Comic (darkseid) Shot him with a radion bullet....technically didn't kill him but left him in a state the League would finish him off

8. Killing Joke comic, (Joker) Questionable? Namely the final panel depicts the two sharing a laugh, but namely settles the idea if this Is in a separate continuity then did Batman euthanize his nemesis.

9. Batman "Endgame". In Jokers masterstroke to eliminate the dark knight. Batman ultimately decides to make sure the Joker doesn't escape from a collapsing cave, depriving Joker of the healing chemical he needs to save himself. They both seemingly die in the collapse. Later revived from the healing chemicals.

10. Justice League: Crisis on two Earths: Batman's exploited a speedster "Johnny Quick" by using him as a frequency oscillator to travel to different dimension to save the universe....what he didn't reveal was the side effect of space time tampering on his body, Rapid accelerated aging and he died of old age. Asking if Batman "Knew this was going to happen" he gives no response; it is heavily implied he anticipated it; thus sacrificed a villain than ask a hero to do the same.