McCarthy said the case is built on the eyewitness accounts from three of the men Phillips allegedly shot at and from a fourth man who was on the porch. All are members of the Gangster Disciples, a rival gang to the Black P Stones, she said.
Defense lawyer Sam Adam Jr. said that should introduce doubt into whether Phillips actually is the shooter.
"It's my belief he was simply placed there by rival gang members who simply have an ax to grind," Adam said. "It was not Moses who did this."
Adam offered the judge no mitigation at the hearing, saying he would reserve the presentation of evidence for a later time. But after the hearing, he said Phillips was at home with his mother when the shooting took place.
On Tuesday, Phillips' mother said her son was in the house with her as she watched a movie the night of the shooting. Felicia Phillips said her son is not a gang member. She said that he is being blamed for the shooting by men who are gang members and who do not like him.
"It was 9:15 at night," she said, doubting eyewitnesses could identify the shooter. "If they can see who was shooting at them, they really got some good eyes."
Felicia Phillips said her son has been taking classes at home and is interested in things all 19-year-olds enjoy, such as video games and basketball. He's never been violent, she said.
"We've got a lot of kids in the family. He's got cousins, nieces, nephews. He's not going to do something like that to kids," she said.
She added that police searched the house but took nothing.
Phillips' lawyer also pointed to a news conference earlier in the day called by a South Side woman who claimed to have prior knowledge of the shooting.
"She knew about this, she had personal knowledge of who did this, and it was not my client," Adam said. "This is a case where the perpetrator needs to be brought to justice."
The woman, Kim Allen, came forward Tuesday and claimed that she was "an accomplice" in the murder because she had information about the crime before it happened and did nothing to stop it.
In an emotional statement at a news conference outside her home, she described her troubled past--gang involvement, drug dealing, two prison terms and homelessness.
"Today I stand here in shame and disgust at myself for the recent murder of Siretha White," Allen said.
"I didn't pull the trigger," she said. "I knew about it."
Investigators were skeptical of the story, but took her into the Wentworth Area for questioning before deciding her account did not substantively contradict evidence that Phillips was the shooter.
She was released late Tuesday.
Prosecutors said physical evidence does corroborate some of the statements given by the men Phillips allegedly shot at twice on Saturday. Ballistics testing has determined the same gun fired 14 rounds at the men in the alley, and seven as they sat on the porch.
McCarthy said Phillips and Jones each have criminal records.
Phillips has a pending case of unlawful use of a weapon from an incident in September when a gun was allegedly found in a car in which he was a passenger. He is due in court Wednesday on that case.
Jones is on probation in a drug case out of LaSalle County, McCarthy said. He was convicted of aggravated vehicular hijacking in 2000 and sentenced to 9 years in prison. Jones was paroled in September 2003, according to state records.
As police announced charges in the case Tuesday, the department also announced a community march Saturday down Ashland Avenue between 66th and 69th Streets. Chicago Mayor Richard Daley is expected to take part, along with local clergy.
Daley believes such public demonstrations are effective in motivating people on the sidelines to help stop violence in the community, said Jacquelyn Heard, the mayor's press secretary.
"When you're marching, people see how many are there," Heard said. "And those who may not have joined in lose their fear and the march grows as it goes."