MERCEDES – A father of a slain Rio Grande Valley teen is speaking out for the first time since the tragedy.

His son, David Gobellan, was killed while riding his bike home from the gym three weeks ago.

“It’s unreal. I still can’t grasp that he was taken away from us,” says Dionicio Gobellan. “I still think he’s going to call me and say, ‘Hey, dad!’”

KRGV’s Trason Bragg reached out to Mercedes police and city officials.

Related Story: Mercedes Residents Call for Improvements after Deadly Accident

The police department says they intend to upgrade their 9-1-1 system to help ensure all emergency calls made within city limits reaches them first.

Watch the video above for more information on the city’s response.