Her daughter and two sons died after being pulled unconscious from the pool.
The 19th annual Kroger Race for Riley will take place on July 21.
He was last seen in the area of the showers in the prison outside of Mexico City.
Cooper, a rescued Cavalier King Charles Spaniel, and his owner Cathy Herbert, spend their time bringing smiles to the faces of the occupants…
The show begins Wednesday July 22 and runs through Sunday July 26.
Police believe the bullet might have been fired into the air from some distance away.
The suspect, who was believed to have been intoxicated at the time, refused to pull over and a chase then ensued.
The driver was believed to be intoxicated at the time, officials said.