22-year-old Stelson Curry of Cedar Hill pleaded no contest to first-degree assault.
According to authorities, 22-year-old Patrick Pantoja and 27-year-old Emmanuel Nartey were walking from an apartment to the school campus on Oct. 3, 2014, when they were approached by two men who demanded cash. Police say the men were attacked even though they said they did not have any money, and a wallet and smartphone were stolen.
Pantoja was taken to the hospital with severe head trauma.
Curry was arrested in February near Natchitoches, Louisiana. Another suspect faces charges of aiding and abetting in connection to the assault.