It was the biggest mass killing in the city's history. But that doesn't begin to tell the story of what happened that night in West Philadelphia.
When her son got off the El at 46th Street, she says, Malik Harris met him and told him that George Porter had been arguing with someone earlier that day.
CJ rushed to the house to see if he could help, she says.
Later that evening, Quiante Perrin, one of the accused gunmen, left his mother's house.
"I don't even know what time it was he left my home," Perrin's mother, Cynthia Jordan, would later say. "But he's innocent."
Around 8 p.m., Perrin's next-door neighbor, 15-year-old Malik Harris and nine other people lay face down on the floor, waiting for a hail of bullets to be unleashed.
"I know what was in CJ's mind right then and there," says Heath, his surrogate father. "I know he was thinking ... 'Dag, my dad was right. Sometimes it's best to keep your friends there, and you be here, 'cause they're going to be there.'"
Lisa Nelson, Alfred Goodwin's cousin, thinks Goodwin was entertaining different thoughts as the gunmen stood over him in the crack house where his girlfriend, Yvette Long, rented a room.
"'I've gotten myself into something that I'm not going to be able to straighten out,'" she imagines him thinking. "'I'm not going to be able to justify or rationalize to my family.'"
"I've had nightmares about that," she says. "I've had nightmares thinking what his last moments were."
Andrea Watson didn't have time to think about her son's last moments. She got the call while she was coming home from work on the trolley.
"I cried on the trolley, 'cause I knew, I just had this feeling," she says. "Same as when my nephew got killed and they said, 'Did anybody tell you anything?' I just had this sinking feeling. And I just started having an anxiety attack right there on the trolley.
"[My friend] met me halfway up. I didn't even come to the house. We got right in the car. We drove to the crowd, and we didn't see anything. But then we seen a big truck with the antenna, and then when we got close to Lex Street, we seen the cops and they had it all taped off, and they was like, 'It's a lot of bodies in there.'"
As the families gathered outside, some of the dealers mingled with the crowd.
"Shawn Crews came back around [to Lex Street]," says a witness who was at the scene. "The dudes that was standing around there, they all came running over to him like he was some kind of big shot.
"He was driving a Jeep. He had his hands in his pockets, and he had one of them Avirex jackets. And they ran over to him like he was the Godfather. And he was like, 'Be cool, be cool. Don't draw a tip on me.'
"I hope it ain't him. Because he had the nerve to come back to the scene."
When Alfred Goodwin didn't come home that evening, his family didn't know what to think. They had no idea that he frequented Lex Street. Nor did they know that he was having an affair with Yvette Long.
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