As Project Spurs first reported, former San Antonio Spurs forward Stephen Jackson had an altercation with former NBA guard Steve Francis which ended up with Jackson choking Francis and Francis being put in handcuffs.
The video did not show what stirred up the trouble between the two as it simply showed Francis having words with another patron then the scene quickly shifting to Jackson and Francis being separated.
Jackson spoke on what caused the fracas and had this to say:
Stephen Jackson on @HQonESPN explaining his altercation with Steve Francis: "He said something crazy..." [1/2]— The NBA on ESPN (@ESPNNBA) September 13, 2013
"...One thing led to another, my hand ended up on his throat and the next thing you know, he in cuffs." - Stephen Jackson on @HQonESPN [2/2]— The NBA on ESPN (@ESPNNBA) September 13, 2013
Obviously, it must've have been something really bad for Jackson to get ticked off and choke Francis.
Here is the video (at the 25:30 point) in case you missed it but be warned, it is wildly NSFW in all aspects from language to the content of the video.