Mark Anthony Plambeck was a happy, goofy young man who loved all things sports and was dedicated to his daughter, his friends and family said Thursday during a rally calling for justice in Plambeck’s death in Steger.

“He was enjoying life at 23, just joyful,” Plambeck’s father, Mark Plambeck Sr., said. “He had this big, silly smile.”

Plambeck Sr. said at first, he didn’t believe a friend’s call telling him that his son had been shot in the back and killed.

“You’ve got the wrong Mark,” Plambeck Sr. said he thought. But as more calls came in, he learned more about the narrative being put forward about his son and his death.

Steger police said Plambeck was killed Sept. 17 on the 3000 Block of Butler Avenue as the result of a possible home invasion, as officers were told an “unknown male

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