An Indianapolis man was accused on Wednesday of killing a postal worker while she was delivering mail on his street, after he confronted her about mail not being delivered at his home, court documents show.

The postal worker, Angela Summers, 45, was shot in the chest just before 4 p.m. on Monday on North Denny Street in east Indianapolis, according to an affidavit written by Joseph J. De St Jean, an inspector with the U.S. Postal Inspection Service.

The man, Tony Cushingberry-Mays, 21, was charged with murder, assault on an employee of the United States and a firearms offense. He was set to appear in federal court on Thursday, and it was not immediately clear whether he had a lawyer.

According to the affidavit, Mr. Cushingberry-Mays told the authorities that he lived next door to the home where Ms. Summers was delivering mail. The Postal Service had stopped delivering mail to his home because of problems with a dog there, the affidavit said.