The incident occurred back in May of 2013 but was not reported until July. No charges have been filed yet. More from CBS:
"According to Robert Williams, a co-worker of O'Neal's at Turner Studios, for whom O'Neal is an NBA analyst, the 15-time All-Star "ran out of a room and hit me with a tackle punch to the back knocking me down and falling on top of my injuring my neck and back," the police report says.
Williams said Turner Security was made aware of the incident within a day.
"The investigation was initially handled by the zone and as that investigation deepened, it was transferred to the complex case squad," Atlanta police Sgt. Greg lyon said, according to WSB TV in Atlanta. "At the conclusion of their investigation, we'll have their findings and we'll go forth from there, whether charges will be filed, whether it (will) be reviewed by the DA's Office."
Though Shaq's attorney called the incident "nothing more than horseplay", Williams' lawyer disagreed:
"We understand the physical attack by Shaquille O'Neal upon Mr. Robert Williams is under criminal investigation," Williams' attorney said in a statement to WSB TV. "Mr. Williams is presently recovering after surgery.Austin Gill 3/25/2014 07:26:00 PM Tweet
"However, he does state, emphatically, that the permanent injuries he received were not the result of participation in any form of 'horseplay'."