Dungeons & Dragons co-creator Dave Arneson passed away at the age of 61 shortly after 11:00 pm CDT on Tuesday, April 7th, just 13 months after the death of Gary Gygax. Arneson suffered a stroke in 2002, but the cause of death is not mentioned in the announcement (thanks IGN). Here's word on the arrangements:

Cards and letters can continue to be sent:
Dave Arneson
1043 Grand Avenue
Box #257
St. Paul, MN
55105

Visitation will be on April 20th
Time: yet to be determined
Address:
Bradshaw Funeral Home
687 Snelling Avenue South
St. Paul, MN 55105