Life for Shea Petaja felt like a slow-moving car crash; the tragedy nearly broke her. Until one night at a comedy club ...

NBC's newest hit comedy, St. Denis Medical ... the episode's credits included an emotional in-memoriam tribute for Philip D. Shea, complete with his photo and an "In Loving Memory" message.

Now, Ice Cube's son O'Shea Jackson Jr. is taking the comedian to task ... "A metaphor about getting f-----d business wise by your manager is not the same homie,” wrote Jacskon Jr. "He ain ...