Lashyd Merritt, 20, had been on his way to the store when he was shot and killed. He had recently graduated from high school and was working for the Internal Revenue Service, according to his brother-in-law, Dominique Evans.

“He was a kind person,” Mr. Evans said. “Very caring, smart.”

Dymir Stanton, 29, was “good with people,” said Willa Mae Dill, an aunt who lives in the neighborhood and enjoyed frequent visits with her nephew. A sports fan, he had a girlfriend and a 4-year-old daughter.

Ralph Moralis, 59, who worked in restaurants, was on his way home from work and had been chatting with a friend moments before gunfire broke out, said the friend, Omar Davis. “Good dude,” Mr. Davis said. “He grew up in this community, everybody knows him.” Mr. Moralis had been scheduled to walk a daughter down the aisle at her wedding this weekend, The Philadelphia Inquirer reported.

Joseph Wamah, Jr., 31, who lived in the neighborhood, was also killed. Police have said they believe he was home alone at the time of the shooting and was perhaps the first victim.

Two children, aged 2 and 13, were hospitalized with injuries from the shooting and were in stable condition.

Who is the suspect?

The suspect, Kimbrady Carriker, 40, was arraigned on Wednesday morning on more than 30 counts, including murder, attempted murder, assault and reckless endangerment.

There was some confusion initially about Mr. Carriker’s gender identity, and in a news conference on Tuesday, authorities used the pronouns “they/them” to describe him. But on Wednesday, officials from the district attorney’s office said they had no information indicating that the suspect considered himself anything but male.