Newly released 911 dispatch audio reveals the moment police arrived to the scene after “Summer House” star West Wilson’s cousin allegedly shot their grandmother.

In the audio obtained by TMZ, a dispatcher says a caller claimed a possible subject shot his mother-in-law. 

“What we’re hearing is that it is possible that subject shot his mother-in-law,” the dispatcher said.

“We do not know, we were on the phone with the third person who was not there, and he disconnected the call,” the dispatcher later continued.

Wilson’s cousin Dakota Sweeney, 28, was arrested and charged with murdering their grandmother, Gayle R. Wilson.

Sweeney was arrested by the Carrollton Missouri Police Department on Wednesday, April 22, and charged the next day with first degree murder and armed criminal action, according to a statement from Missouri State Highway Patrol.

Gayle, 75, was West and Sweeney’s grandmother, according to her obituary.

This story is developing…