Actor Robin William was found dead Monday at his northern California home and authorities believe he took his own life.

"He has been battling severe depression of late," his media representative Mara Buxbaum told CNN.

On "New Day" Tuesday, Dr. Jodi Gold spoke about Williams' suicide and how it related to his depression and addiction issues.

"When he was manic, I think he felt funnier and more driven," she said.

"He was sort of a role model for people who struggled with bipolar disorder and depression that you can endure, you can be funny and successful. But he struggled, and he lost the battle."

Dr. Gold emphasized that for people who know someone who's suffering from addiction and depression, suicide can be preventable.

If you know someone who needs help, Gold said take it seriously, ask questions, remove firearms and get them help.

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