Christina Treadway
© GOFUNDME.COM/QHD9WK-FUNERAL-AND-TRAVEL-EXPENSESChristina Treadway, 34, jumped to her death from a higway bridge after fatally injuring her two children in Charlotte, North Carolina on Saturday
A North Carolina mother killed her two kids before jumping off a bridge to her death on a highway Saturday, authorities said.

Charlotte-Mecklenburg police responded to a suicide call on Interstate 485 after 5:30 p.m. where they found 34-year-old Christina Treadway dead at the scene, WKRN-TV reported.

Police then went to Treadway's home where 7-year-old Isaiah Miller and 3-year-old Iliyah Miller were found alone with fatal wounds. The kids were taken to a hospital where they later died. Authorities didn't say what their injuries were. A motive remained unclear.

Treadway was an employee with the NFL's Carolina Panthers, a team spokesman said.

Antoine Miller, the kid's father, created a GoFundMe page to raise money to cover funeral expenses.

"I am beyond hurt and sad. Please help me send my babies to their resting place," he wrote. "My kids were my everything. I truly don't know how my life will go on."

Treadway would often post about her children's achievements on social media, and in one Instagram post, she said she made a birthday outfit for her daughter.

"Iliyah and I have an incredible bond," she said in the post. "I'm so sad she is not a baby anymore. I'm looking forward to all her achievements and adventures."

Family members couldn't understand what drove Treadway to kill her son and daughter.

"I love Tina to death, but she was just troubled," Tina Moore, the children's grandmother, told WJZY-TV. "I don't know what happened because she came and stayed at my house for the summer. I don't know what happen, she just lost it."