Joseph David Wolfgang Pichler is a child actor that disappeared on January 5th, 2006, when he was 18 years old.  A note was discovered in his car that talked about his desire to be a "stronger brother" and he wanted his belongings to go to his younger brother, but his family does not believe this is a suicide note.
 
Website:
https://www.drinkingthecoolaid.com/

RESOURCES:

• The Chilling Case Of Child Actor From 'Beethoven' Who Has Been Missing Since 2006 (ladbible.com)
• The Disappearance of a Former Child Actor | Missing #23 | by Nicole Henley | Of Misdeeds and Mysteries | Medium
• Former child actor missing (archive.ph)
• Joseph David Wolfgang Pichler – The Charley Project
• Without a Trace: Two Lives, No Signs (kitsapsun.com)
• Joe Pichler, The Child Actor Who Disappeared Without A Trace (allthatsinteresting.com)
• Joe Pichler - Wikipedia
• The Disappearance Of Joseph Pichler | Missing & Unidentified People (wordpress.com)