Danelo Cavalcante was sentenced to life in prison and has been spotted six times since escaping from the Chester County Prison in late August. Police say how he got out is still under investigation.
The letter came from Mark Pomerantz, who along with his co-leader in the Trump probe, resigned in February over the future of the case.
The indictment comes after a three-year investigation into the business dealings of the former president's family business by the Manhattan district attorney's office.
Amy Cooper had been facing a charge of falsely reporting an incident to police, after she told them Christian Cooper, who is not related to her, threatened her in a New York City park. He did not.
The district attorney's office said police "acted in lawful self-defense and defense of others." It added the officers won't be held criminally responsible in the death of Melyda Corado.
The new DA in Los Angeles County will not seek the death penalty, excessive criminal sentences or cash bail. He said his experiences as a young police officer 40 years ago shaped his approach.
San Francisco District Attorney Chesa Boudin called the charges "historic" and vowed to apply the law evenly "no matter what the color of your skin....or whether you wear a uniform to work."
Jeffery Ryans, the man who sustained dog bites, "certainly wasn't posing an imminent threat of violence or harm to anyone," according to the district attorney.
Footage released by the Lancaster Bureau of Police Sunday shows Ricardo Munoz was fired upon by an officer. Police said Munoz had a knife and was brandishing it "in a threatening manner."
Willis defeated six-term Fulton County District Attorney Paul Howard, and her former boss, in Tuesday's runoff. Howard has been dogged by scandal, including his handling of the Rayshard Brooks case.