“Growing Up Hip Hop” star Angela Simmons paid tribute to her former fiancé Sutton Tennyson, who was killed in Atlanta over the weekend.

Simmons – who is the daughter of Run-D.M.C. member and rap legend Rev. Run, and niece of record producer Russell Simmons – said she was “hurting” from the sudden death of Tennyson, who was fatally shot outside of a home in southwest Atlanta.

“Thank you for leaving behind my greatest gift. I’m hurting. I’m numb. Thank you for the out pouring of love everyone. I cant believe I’m even saying Rest In Peace Sutton. I promise to hold SJ down in every way I promise,” Simmons posted on Instagram Sunday, along with a photo of Tennyson and their 2-year-old son, Sutton Joseph.

She shared several photos on her Instagram Story and a second post of their son watching a video of Tennyson.

“Reflecting. He keeps replaying it RIP Sutton,” she captioned the post.

Sutton Tennyson and Angela Simmons in December 2016. (Getty Images)

The 37-year-old Tennyson was found dead inside an open garage on Saturday. Preliminary police investigation found that he and another man got into an argument on the driveway before the shooter opened fire, striking Tennyson several times.

“The suspect sped from the scene in a car,” Atlanta police said in a statement to Fox News.

Simmons and Tennyson announced they were engaged in April 2016, five months after they welcomed their son. Simmons, 31, announced they split last December in an Instagram post about moving on from what “isn’t healthy” for her and becoming a single mother.