April 19, 1989: - a group of five teenagers were arrested for the rape and assault of a white female jogger. Based partly on "police-coerced confessions", they were convicted, and spent several years in prison each. They claimed to be innocent.
April 26, 1989, the New York Times claimed the teenagers raped her, referring to them as the "wolf pack"..
April 30, 1989: Pat Buchanan of the Washington Post calls for the death penalty for the accused
2 weeks after the attack:, Mr. Trump published a full page ad in four New York City newspapers. The ads never explicitly called for the death penalty for the five defendants [full page ad]
2002 and later: Matias Reyes, a convicted murderer and serial rapist, confessed to the crime.. His DNA was a match. In 2014 The city settled the case and paid $41 million
So, it appears that Trump was not the accuser, but he did call for executions, although not explicitly for this group. Does that count as Trump accusing them? The impression I had from the Tweet was that Trump had said it was them who committed the crime, and published an ad calling for them to be killed. So parts of this tweet are true, other parts are misleading.