[4] Mack first moved to Oxnard, California, and he worked at the Camarillo State Mental Hospital[2] where his occupation was a psychiatrist social worker for 4 years.

[5] As a president and member of the organization he fought against school segregation and advocated for African American worker rights.

[7] Over the next few years, he helped rebuild the area by "renovat[ing] 63% of damaged businesses, created jobs," and especially rebuilt the Crenshaw Boulevard corridor.

[5] Under his leadership, the commission became the "driving force" behind several LAPD improvements, including video cameras in squad cars to increase accountability among patrol officers, and the department achieving full compliance with the federal consent decree that had been in place since 2001.

[8] Mack was 81 when he died of cancer on June 21, 2018, at Kaiser Permanente in Los Angeles at Cedars-Sinai Medical Center.

[5][8][1] For Los Angeles Mayor Eric Garcetti, Mack "made history with a fierce determination to pursue justice, an unshakable commitment to equality, and an unbreakable bond with the community he worked tirelessly to uplift every day of his remarkable life.