He was a boy who grew to be a man. Lincoln was a principled, honest, hard working man who freed the negro slaves in America. He never killed anyone his entire life. He was a man of circumstance.
He may not have directly killed anyone, but the blood of a nation is on his hands. He manufactured the incident at Fort Sumter as he had no legal basis to prevent the South's secession. Here's a glimpse of how his actions were viewed by Northern newspapers.
"The affair at Fort Sumter, it seems to us, has been planned as a means by which the war feeling at the North should be intensified, and the administration thus receive popular support for its policy.... If the armament which lay outside the harbor, while the fort was being battered to pieces [the US ship The Harriet Lane, and seven other reinforcement ships], had been designed for the relief of Major Anderson, it certainly would have made a show of fulfilling its mission. But it seems plain to us that no such design was had. The administration, virtually, to use a homely illustration, stood at Sumter like a boy with a chip on his shoulder, daring his antagonist to knock it off. The Carolinians have knocked off the chip. War is inaugurated, and the design of the administration accomplished." ~ The Buffalo Daily Courier, April 16, 1861.
"We have no doubt, and all the circumstances prove, that it was a cunningly devised scheme, contrived with all due attention to scenic display and intended to arouse, and, if possible, exasperate the northern people against the South.... We venture to say a more gigantic conspiracy against the principles of human liberty and freedom has never been concocted. Who but a fiend could have thought of sacrificing the gallant Major Anderson and his little band in order to carry out a political game? Yet there he was compelled to stand for thirty-six hours amid a torrent of fire and shell, while the fleet sent to assist him, coolly looked at his flag of distress and moved not to his assistance! Why did they not? Perhaps the archives in Washington will yet tell the tale of this strange proceeding.... Pause then, and consider before you endorse these mad men who are now, under pretense of preserving the Union, doing the very thing that must forever divide it." ~ The New York Evening Day-Book, April 17, 1861.
"Mr. Lincoln saw an opportunity to inaugurate civil war without appearing in the character of an aggressor." ~ Providence Daily Post, April 13 1861
"We are to have civil war, if at all, because Abraham Lincoln loves a [the Republican] party better than he loves his country.... [He] clings to his party creed, and allows the nation to drift into the whirlpool of destruction." ~ The Providence Daily Post, April 13 1861
"If this result follows – and follow civil war it must – the memory of ABRAHAM LINCOLN and his infatuated advisors will only be preserved with that of other destroyers to the scorned and execrated.... And if the historian who preserves the record of his fatal administration needs any motto descriptive of the president who destroyed the institutions which he swore to protect, it will probably be some such as this: Here is the record of one who feared more to have it said that he deserted his party than that he ruined the country, who had a greater solicitude for his consistency as a partisan than for his wisdom as a Statesman or his courage and virtue as a patriot, and who destroyed by his weakness the fairest experiment of man in self-government that the world ever witnessed." ~ The American Standard, New Jersey, April 12, 1861, the very day the South moved to reclaim Fort Sumter.
The grandson of Francis Scott Key, Francis Key Howard, the editor of the Baltimore Exchange, was arrested as well as others who wrote against Lincoln. While he was imprisoned at Fort McHenry, he wrote the following words. The date was September 13, 1861...... 47 years to the day!
"When I looked out in the morning, I could not help being struck by an odd and not pleasant coincidence. On that day, forty-seven years before, my grandfather, Mr. F. S. Key, the prisoner on a British ship, had witnessed the bombardment of Ft. McHenry. When on the following morning the hospital fleet drew off, defeated, he wrote the song so long popular throughout the country, the Star Spangled Banner. As I stood upon the very scene of that conflict, I could not but contrast my position with his, forty-seven years before. The flag which he had then so proudly hailed, I saw waving at the same place over the victims of as vulgar and brutal a despotism as modern times have witnessed."
When he was finally released on November 27, 1862 he wrote:
"We came out of prison just as we had gone in, holding the same just scorn and detestation [for] the despotism under which the country was prostrate, and with a stronger resolution that ever to oppose it by every means to which, as American freemen, we had the right to resort."
From......
"Fourteen Months In the American Bastiles" by Francis Key Howard
Think it wasn't deliberate on Lincoln's part?
"You and I both anticipated that the cause of the country would be advanced by making the attempt to provision Fort Sumter, even if it should fail ; and it is no small consolation now to feel that our anticipation is justified by the result. "~Abraham Lincoln, in a letter to Gustavus Fox, May 1, 1861
Lincoln was intimately involved in not only the pretext for, but the prosecution of, a war that utilized the concept of total war, including on a civilian population. He had no objections to the abuses and war crimes of some of his officers.
Here's one notable instance.
In April, 1862 Union General John Basil Turchin unleashed his troops on Athens, Alabama. Turchin told his troops, "I shut mine eyes for two hours. I see nothing". What followed was a spree of looting, raping and pillaging. When news of this brutality reached General Don Carlos Buell in June, he launched an investigation and had Turchin relieved of his command on July 2. Charges stemmed from not only the brutal behavior but also from Turchin's having his wife accompany him in the field. Turchin was court-marshaled, found guilty and sentenced to dismissal from the Army in August, 1862.
President Lincoln set the order aside and promoted Turchin to Brigadier General, retroactive to July 17.
From ...Encyclopedia of the American Civil War P. 1984