20-year-old mom gunned down on NYC street was targeted: Sources

A 20-year-old woman was fatally shot in the head while pushing her 3-month-old baby in a stroller on New York City's Upper East Side on Wednesday night, police sources said.

The killing appears to be targeted, police sources told ABC News.

Before Azsia Johnson was shot, she texted a relative saying she was planning to meet her baby's father "to work things out," according to police sources.

Police want to talk to the baby’s father but have not named him as a suspect, sources said.

The killing appears to be targeted, police sources told ABC News.

Before Johnson was shot, she texted a relative saying she was planning to meet her baby's father "to work things out," according to police sources.

Johnson was pushing a baby stroller on Lexington Avenue and East 95th Street around 8:25 p.m. when a man wearing a black hooded sweatshirt came up from behind and shot her in the head, police said.

An unknown person approached her and fired a single shot at close range, police said. The suspect fled immediately on foot, police said.

The baby was unharmed, police said.

No arrests have been made.

New York City Mayor Eric Adams said Thursday, "We strongly believe it was not a random shooting," adding, "We will catch the person responsible."

Detectives are checking prior addresses in Brooklyn and Staten Island but believe Johnson was living at a women's shelter in East Harlem, sources said.

This shooting comes less than one week after theSupreme Court struck down a New York law that restricted the concealed carry of handguns in public to only those with a "proper cause."

Adams tweeted overnight, "More guns in our city means more lives lost. It means more babies crying as those who love them lie dead. We cannot allow this epidemic to keep claiming lives."

ABC News' Will Gretsky and Matt J. Foster contributed to this report.