Indeed, his actual hand to hand combat body count isn’t too shabby either 
Didn’t he also kill Brickbat around that same time? Grabbed him from behind and snapped his neck?
At one point Rom realised killing Dire Wraiths was as good as banishing them.
Daredevil let Bullseye fall to his “death”. It’s far more common for heroes to passively “allow” someone to die as opposed to actively killing. Not sure a court of law would see that fine distinction, though.
Kinda. The Reverse Flash was making a run for Barry’s fiancee (he had killed Iris, Barry’s first wife, previously). Barry caught him in a superspeed headlocka nd snapped his neck. Got put on trial for manslaughter for it. Iris (who had gotten better) helped him beat the rap and they retired to the future together. Until Barry died in the Crisis.
I think it’s always been ambiguous whether Gwen Stacy was already dead when the Green Goblin threw her off a bridge or if Spider-Man accidentally snapped her neck when he got her on a web to attempt to save her.
The Huntress has killed a few times. In Cry for Blood she actually puts out a mob hit on one guy, and allows it to be carried out. Even the Question was shocked at that one.
No, that was Whiphand he did that to. Brickbat was accidentally impaled on a steel support beam when a building collapsed on him and Colossus. In the same fight, Havok killed Divebomber and Tension, Storm incinerated Blindside with a lightning bolt, Wolverine killed Temptress and Spitball accidentally killed himself and Lockup trying to kill Havok.
Not to mention, it’s strongly hinted that he saved Dick Nixon’s bacon by offing Woodward and Bernstein.
Faora and Quex-Ul, too, if you’re talking about the post-Crisis Kryptonite incident on the burnt-out remains of Time Trapper’s parallel Earth.
Superman and Batman killed people in their early days, circa 1938-1941, including Supes picking up a military torturer/interrogator and hurling him like a javelin hundreds of feet to certain doom. Bats machine-gunned (from an early Batplane) a grotesquely enlarged and malformed henchman of Hugo Strange that had climbed a skyscraper, in an obvious steal from King Kong. Things calmed down quite a bit when Supes’ power increased dramatically and simple brutality seemed beneath him, and Bats got his sidekick Robin, which pussified the character considerably.
Jay Garrick killed the first Mr. Terrific. He was possessed, though.
Barry Allen killed Professor Zoom.
Superman is quite fond of killing people. Particularly Lois Lane, it seems…
Kid Miracle killed an enite hospital of folks, but in his defense he wasn’t quite himself at the time. If we count Galactus, then the body count gets really high; as does if we factor in the Crisis on Infinite Earths.
No one’s mentioned Spider-Man yet, or am I just missing it? His entire career is premised on his feelings of responsibility for the murder of his uncle at the hands of a burglar who Peter could easily have stopped. Not quite what the OP is looking for but a decent example nonetheless.
Shortly after her reboot Wonder Woman decapitated one of the Greek demi-gods, I wanna say either Deimos (sp?) or Phobos, can’t remember which.
If we’re counting What If? stories then an alt-Phoenix (after supposedly being cured by the Shi-ar) broke loose, killed all of the X-men then in her grief took out Earth. It’s implied that she may have destroyed the entire universe.
Nope. It was the Question. (Who was really the proto-Mr A coming first and all.)
That’s the one. I just couldn’t remember the other two’s names.
That reminds me. Lobo killed every last Czarnian, save himself, so he could be the last Czarnian in the universe.
But Lobo’s not exactly the most heroic of non-villains.
You missed it. 
“Semi” is right. He punched her dead (literally) in the face. He thought it was Wolverine attacking him again (in Spider-Man Versus Woverine appropriately enough) and whirled around thinking he was going to be punching Wolvie’s adamantium face. Oooooooopsie! Somehow she survived long enough to say goodbuy to Wolverine, when in “reality” her head should have exploded like that guy in that Story Of Ricki movie.
I have to take minor issue with that—that’s just the people we see him kill “on screen.” It seems reasonable enough that he’s killed more than that.
Astro managed to find some of those panels, not long back.
That reminds me…are we counting civilians who have died because heroes refused to kill villains? Cause, y’know, if that’s the case, I think Batman’s got to be pretty high up on the list. (Well, the list of guys who haven’t killed planets, at least.) Like he said in DKR,
Miracleman kills at least two of Emil Gargunza’s guards. One by nonchalantly poking his finger through the guy’s chest and the other by flying at full speed right through him.
He then proceeded to grab Gargunza, fly him up to the uppoer atmosphere, kiss him and toss him back to the Earth.
He also killed Johnny Bates (the non powered form of Kid Miracleman) so that he could never regain his powers and kill another city full of people.
Didn’t Star Brand destroy a city ?
I wouldn’t count something like the death of Uncle Ben as being a “murder” on Spider-man’s part; while he certainly carried huge guilt for it, he didn’t plot the murder nor carry it out. Random thug dude did.
A more ambiguous example comes from Avengers, when Mockingbird was mind-controlled and raped by Phantom Rider. Later, after she snapped out of it, she had the opportunity to save him from falling to his death – and she did nothing. She stood aside and let him die, and then covered up the whole thing from her teammates.
Queen Projectra killed Nemesis Kid in the Legion, however, she wasn’t a member of the Legion and he had just essentially caused her husband’s death.
She said something about it being her right as absolute ruler of Orando. I guess she was right.
She also, later, inadvertantly caused the death of the Emerald Empress when she cut her off from the Emerald Eye (which had been sustaining her). It was something of a Suicide by Superhero on the Empress’ part - she knew it would kill her, Jeckie didn’t, the Empress begged for Jeckie’s help getting free of the Eye.
Wow … Avengers has evolved quite a bit since I was reading it regularly (but that was over a decade ago). It was a pretty simple good-guys-whomp-the-bad-guys deal back then.