Joshua Andrew Koenig, the son of Walter Koenig, was found dead in a Vancouver park. The official cause of death was not released, but suicide, and Mr. Koenig's father, who is best known for playing Pavel Chekov on Star Trek: The Original Series, said his son "took his own life." The 41-year-old actor had been battling clinical depression and was missing for a week, prompting celebrities to use Twitter to try to find him. Andrew established himself as an actor in his own right with a recurring role on the 80s sitcom Growing Pains as Richard "Boner" Stabone. He also guest-starred in an episode of Star Trek Deep Space Nine and recently played the Joker in the fan-film Batman: Dead End. He was also a film-maker and out-spoken activist for human rights in China.

Walter Koenig, and his wife Judy ,said, "The Koenig family thanks you for your kind thoughts at this difficult time. It means a lot to them and they are very appreciative of the support they are receiving. Each of these emails will be printed and bound in a remembrance book." I'm sure this is a sad day for the family and our hearts go out to them.
 
If you wish to contact the family to express condolences, then go to the Official Andrew Koenig Memorial.
[Image Source: walterkoenigsite.com]

UPDATED: Added cause of death and some other biographical facts.