No one has been held responsible for a mistake made during the Antioch Waffle House shooting in April.

911 operators initially sent Metro Police to the wrong Waffle House.

“Someone needs to be held responsible if they’re not living up to their job,” said Abede DaSilva.

DaSilva and his brother, 23-year-old Akilah, were both inside the Waffle House at 3571 Murfreesboro Pike in Antioch on April 22, 2018.

29-year-old Travis Reinking is accused of entering the restaurant just before 3:30 a.m. and opening fire. Four people were killed and four were injured. Akilah DaSilva died at the hospital.

DaSilva says he dialed 911 from the bathroom while Reinking was in the restaurant. An Open Records Request shows he and at least eight others called for help.

GPS coordinates for at least four callers showed up for 911 operators but the operators didn’t use them.

MORE: ECC asks Motorola for GPS coordinates of Waffle House calls

To get a better understanding of how this happened, we asked for emails between the Metro Department of Emergency Communications Director Michele Donegan and her deputy directors Angie Milliken and Michelle Peterson.

In those emails, News 2 discovered that one 911 call taker didn’t press the F-11 key. That one key would have given her the correct location information on her computer screen. She also didn’t ask for the cross streets near the caller’s location.

The ECC says that call taker nor anyone else was reprimanded because no policies nor procedures were violated.

Since May, the ECC has denied our multiple requests for an on-camera interview to discuss this issue. However, Director Donegan responded when we emailed asking what changes have been made in the wake of the Waffle House response problem.

“There were no changes to policies or procedures as a direct result of the Waffle House incident,” Donegan wrote. “This incident served as a reminder for call takers to utilize all the tools available to them to verify location of callers.”

Furthermore, there’s no indication anything went wrong in a supervisor’s review written on the day of the mass shooting. The 911 operators are given glowing reviews.

DaSilva was shocked when we told him police were sent to the wrong location because GPS coordinates for the cell phone callers weren’t used.

“This is serious. My brother isn’t coming back,” said DaSilva. “What’s the worst that can happen? They lose their job? It definitely doesn’t need to be taken lightly because we don’t want it to happen again.”

Another reason why the GPS coordinates weren’t used is the ECC’s electronic phone book didn’t include the Antioch Waffle House. The location was new. However, at our last check, the location still was not included in the phone book.