The "No More Pain" event is planned for 5:00 p.m. to 7:00 p.m. at Redemption Fellowship Church on 26th and Keefe.
All money collected will go to the Barbara Killebrew Memorial Fund.
Police say Killebrew was stabbed to death on Tuesday evening, June 24th near 24th Place and Melvina.
Police say a 52-year-old Milwaukee man is in custody - Killebrew's boyfriend.
Police were called to the scene around 5:30 p.m. for a domestic incident. When they arrived they found a woman who died as a result of multiple stab wounds.
Neighbors say it's been a violent summer so far in this area, and this is yet another blow.
FOX6 News has learned the victim in this case had just recently spoken out against the recent violence in her neighborhood.
Neighbors identify her as Barbara Killebrew.
They say she had a restraining order against her former boyfriend - but no one knew where to find him to serve him the papers.
Now, he's accused of killing her.
"I came home and my son said the woman down the street has been looking for me and wanted me to pray with her and I feel so bad because I wasn't there. Maybe she would have confided in me. Maybe she would have talked to me," a neighbor said.
We're told Killebrew was active in her church - playing the tambourine on Sundays. She was an assistant school teacher, and a recent breast cancer survivor.
"She was a woman of God. She loved the Lord. She loved people. She was very concerned about her community," the neighbor said.
It was earlier in June when Killebrew came to a gathering in her neighborhood - speaking out against the violence after three shootings occurred near her block.
Barbara Killebrew spoke with FOX6 News, and her words would tragically be propheetic.
"I'd like to tell those young men that they go to put those guns down because it could be one of their family members that's dying or getting shot," Killebrew said.
"She did not deserve to die like that and I don't know what type of spirit is over Milwaukee but it just seems like it's violence everywhere," Killebrew's neighbor said.
Killebrew's family is now grieving that a woman so concerned about recent violence towards others would become the very next victim.
"I want the community to know that she helped people. She was an assistant school teacher. She was a woman of God. She tried to do the best that she can," Killebrew's neighbor said.
Police say the Milwaukee County District Attorney's Office is reviewing this case for charges.
Meanwhile Killebrew's daughter tells FOX6 News a fund has been established in Killebrew's honor. Donations can be made at any Chase Bank branch.