"I want to thank everybody for caring about my family," said his mother, Elizabeth Garcia.
Six-year-old Moises Jimenez died after he was shot in the back.
Eleven-year-old Manuel Jimenez, who was injured in the shooting, remains in intensive care. On Saturday, he learned his brother was killed.
The family is planning on using the $5,000 to cover medical and funeral expenses.
Nobody has been arrested in the deadly drive-by shooting.
A GoFundMe account has been set up to help the family. You can donate by clicking or tapping here.