CHICAGO (CBS) – Chicago Police Supt. Eddie Johnson is frustrated with the violence in Chicago, especially with Aldrige’s alleged shooters being repeat offenders.

“I’m frustrated, you should be frustrated,” said Police Superintendent Eddie Johnson. “All Chicagoans should be frustrated.”

Two men have been charged Sunday in the murder of Nykea Aldridge, CBS 2’s Sandra Torres reports. Brothers, Derren Sorrells, 22 and Darwin Sorrells, 26, were both charged with one count of first degree murder and one count of attempted first degree murder.

That is not enough, Johnson said. So much more needs to be done to end violence in Chicago. People need to be held accountable for their role in it.

Bond was denied for both Sorrells brothers.

Johnson said he is sick of reporting about the rash of shooting deaths that mark every weekend in Chicago; especially frustrated after learning that the two men accused of shooting and killing Nykea Aldridge are repeat offenders who should not have been out in the streets.

A vigil for Aldridge was held Sunday afternoon at Willie Mae Morris Empowerment Center. Friends and family came together to pray for healing for those grieving the loss of Nykea Aldridge and for peace for the city at large.

“Too soon she was taken away from us,” said mother, Diann Aldridge, expressing her sorrow.

The vigil happened an hour after Superintendent Eddie Johnson announced murder charges against two men.

“Her life was cut short,” Johnson said. “By gunfire, from two convicted felons who were both out on parole.”

Police said, the Sorrells brothers were targeting a for-hire driver, because he was not from the area.

Instead, they shot and killed Aldridge who was steps away.

“We have video of the incident,” said Commander, CPD Area Central Detectives Unit, Brendan Deenihan. “We are very fortunate that we worked with the school and security officers in the area.”

The family continues to pray for healing. Supt. Johnson asks for stronger sentences.

“These two offenders are the prime example,” Johnson said. “ Of the challenge we face here, in Chicago, with repeat gun offenders that don’t care who they shoot.”

The Aldridge family has set up a trust fund for her four children.