9:18 AM PT -- 10/18 -- Philadelphia Eagles star Malik Jackson has followed Barnes' lead ... vowing to pitch in and pay for the remainder of the fees for Jefferson's service.
Sacramento Kings star Harrison Barnes has stepped up and will pay for the funeral of Atatiana Jefferson, the woman who was shot and killed by a police officer while she was in her own home.
Jefferson's story has made national news -- a neighbor had called police early Saturday morning to check on Jefferson after he saw a door was open at her home in Fort Worth, Texas.
When the officer, Aaron Dean, arrived at the home ... he saw a person inside, and before ever announcing he was a police officer, he opened fire and shot Jefferson, killing the 28-year-old.
Dean has been charged with murder. He's currently out on $200,000 bail.
Jefferson had been peacefully, innocently watching her 8-year-old nephew at the home.
Now, Barnes -- who played for the Dallas Mavericks for 3 years before being traded to the Kings -- has offered to help out the family and foot the bill for the funeral, which is scheduled for Saturday in Dallas.
Barnes has made a lot of money in his NBA career -- he recently signed a 4-year, $85 million extension. He has earned a reputation for being extremely generous with his money and often giving back to the community.