LIVONIA, Mich. (WXYZ) — A 55-year-old woman has been charged after allegedly killing a 3-year-old boy and injuring his twin sister and mother in a hit-and-run crash in Livonia.
Police say that around 10:45 p.m. on Sunday, June 29, 55-year-old Tammy Sandoval, a Mount Morris resident, struck three people with her car before driving away from the scene.
Watch the arraignment of Sandoval in the video player below:
The children's grandparents spoke with 7 News Detroit about the crash, identifying the victims as Tia and her twins, Khalil and Khloe. Regina and Michael Robinson say they are devastated.
Watch below: Family speaks after 3-year-old killed in Livonia hit-and-run, mom & sister injured
"I'm really, really torn apart seeing my grandson just laying on the table like that, and my daughter with tubes, and my other grandbaby with tubes down their neck, and you know all they wanted to do was go out and have fun at the carnival and the fireworks," said Regina. "I'm really messed up right now."
Watch below: Family members of Livonia hit-and-run victims provide update, call for change
Michael Robinson said Tia is still fighting for her life.
"Of all of it, even though all this is a great tragedy, the worst thing of all is how are we gonna tell Tia? She doesn't know," he said. "She's been in a coma since they brought her in."
Family tells us Khloe is now recovering at home after being released from the hospital.

Sandoval has been charged with the following:
- Operating While License Suspended, Revoked, or Denied – Causing Death
- Two counts of Operating While License Suspended, Revoked, or Denied – Causing Serious Injury
- One count of Failure to Stop at the Scene of an Accident While At Fault – Causing Death
- Two counts of Failure to Stop at the Scene of an Accident – Causing Serious Impairment
At Sandoval's arraignment in 16th District Court, a not guilty plea was entered on her behalf.
The judge set her bond at $600,000 cash/surety with no 10%.
Her probable cause conference has been scheduled for July 10, and her preliminary examination is set for July 17.