It was his second arrest this month, The Indianapolis Star reported Wednesday.
The charges stem from a Jan. 11 incident in which a man, Keith Jones, said Dumes, 25, shot him in the neck during an early-morning meeting where Dumes was to buy Jones' Chevrolet Camaro.
When the two men met about 1 a.m., Jones said Dumes got into the Camaro, then brandished a gun and shot him in the neck. Jones drove himself to the hospital.
Dumes is also charged with attempted carjacking and theft.
Police later found a semi-automatic handgun in the Camaro, but Jones denied it was his.
Dumes was charged last week with shooting into a house where his year-old nephew and brother were. He was charged with criminal recklessness and carrying a handgun without a license.
Dumes transferred to Indiana for the 2008-2009 season after playing basketball for Eastern Michigan University and Vincennes University. He averaged 12.7 and 6.6 points per game, respectively, in his two seasons with the Hoosiers.
Celebrity Families of 2014 [PHOTOS]