MIA pronunciation

I love to listen to Murder in America. And maybe I’m hearing something different and I’m crazy… but they say the word investigators “investERgators”.

At first I tried to ignore it because obviously there’s more important things to focus on, and I couldn’t put my finger on what sounded odd. But some episodes it’s said so much it’s distracting to the story. Am I nuts? Am I just hearing things? They say investigation correct so I tried convincing myself im just hearing things .

They also say “sibilings”…