Published: Aug 12, 2014 9:27 PM EDT
Updated: Aug 12, 2014 10:24 PM EDT

FORT MYERS, Fla.- "It was a once in a lifetime experience for people to see a celebrity of that stature."

Scott Saxon, the General Manager of the Barbara B. Mann Performing Arts Hall remembers the night, a year and a half ago, when Robin Williams took the stage for a sold out show.

"Those memories he made that night those people will have with them forever," said Saxon.

On Tuesday investigators in California announced the 63 year old actor and comedian slit his wrist then used a belt to hang himself in his San Francisco-area home. His personal assistant discovered his lifeless body.

"Entered the bedroom and found Mr. Williams clothed in seated position with a belt around his neck and the other end in the closed closet door and the door frame."

WINK News spoke to a mental health counselor at the David Lawrence Center in Naples. She said Williams death shines a light on addiction and depression, two things Williams openly battled.

"They're equally very prevalent in our society," said Mary Ann Guerra. "Alcoholism and depression together can be great risk factors but they are both treatable and the treatment is available."

But here at the performing arts hall, theater leaders said they'll always remember the uplifting moments with Williams.

"We're sort of left with the joy that he delivered to millions and millions of people throughout his various roles that he performed over the years."