At the time, the media reported that officer Sicknick was bludgeoned to death that day by pro Trump protesters.
Only he spoke to his family that evening and said he was fine.
He died the next day, but medical examiner now says …. heart attacks.

https://www.zerohedge.com/markets/media-lied-repeatedly-about-officer-brian-sicknicks-death-and-they-just-got-caught

It was just this last week, that the NYT had to walk back its reports that Russians had put bounties on US troops in Afghan.
At the time, that was enough to shift US foreign policy against a troop withdrawal.
And it certainly muddied the political waters for a time.

Why is there no accountability? — Retractions should be required in the largest font they use, on the front page, with twice the space occupied by the original story! And for twice as many days running as any parts of the story ever appeared originally.