Dwyane Wade's Family Plans Vigil, Launches Fund for Fatally Shot Cousin

Chicago police are questioning three individuals in connection with the killing.

The mother-of-four was gunned down while pushing a stroller through Chicago's Parkway Gardens neighborhood on the South Side, when two men exchanged gunfire nearby, hitting her in the arm and the head.

Aldridge, 32, was an innocent bystander and not the intended target, police said.

Police are also are investigating whether the encounter involved a driver for a rideshare company, according to The AP.

As police interview persons of interest, the devastated Wade family is inviting community members to a vigil at 1 p.m. Sunday at the Willie Mae Morris Empowerment Center in Chicago. According to its website, the center "was developed in part to assist the City of Chicago in their continued efforts to decrease the violence and fatalities by providing a safe haven and high quality programming for our youth."

The family has also established a trust fund for Aldridge's four children. Donation checks can be made payable to the Nykea Aldrige Children's Fund and mailed to Seaway National Bank, Attn: Daryl Newell, Chief Retail Officer, 645 East 87th Street, Chicago, Illinois, 60619.

He continued, "The city of Chicago is hurting. We need more help& more hands on deck. Not for me and my family but for the future of our world. The YOUTH!" His final tweet read, "These young kids are screaming for help!!! #EnoughIsEnough."

Public figures, including fellow athletes, took to Twitter to express their condolences to Wade.

"This is heartbreaking. So sorry for your loss," tweeted singer and actress Deborah Cox.

ABC News' Devin Villacis contributed to this report.