WICHITA, Kan. -

He seemed so full of life. A day after Robin Williams' suicide, friends, family and colleagues are stunned the comedian was battling such a mental problem.

Barb Andres, Wichita Breakthrough Club, said Williams' death is shining light on depression and substance abuse. Investigators believe Williams, 63, used a belt to hang himself from a bedroom door sometime between late Sunday and when his personal assistant found him just before noon Monday at his home in California,

"It is really important to connect with people," she said. "When you stop connecting with people, that's when you're really at high risk."

Olin Burris knows that feeling well. He was diagnosed with bi-polar disorder nearly four decades ago.

"I don't want to be a negative statistic," he said. "I want to be one of the people to show you can live with this illness, but you have to seek help."

Andres said there is no magic bullet that will help everyone, but there is hope.

"If you're living healthy, if you have healthy friends around you, if you're working with your doctor or psychiatrist, if they tell you to take medicine, take that medicine, you really can have a good, happy productive life," Andres said.

Andres said don't be afraid to talk to loved ones battling depression about suicide. It may help break the ice and get them to talk about it, she said.