There was a brief mention not long ago about an Italian man committing suicide after shooting his wife. Is there a follow up to that story?

No it was as you described.

Case closed.

For reference, the main topic on that was here: http://www.thaivisa.com/forum/topic/896850-italian-expat-and-thai-wife-found-dead-in-apparent-murder-suicide-in-chiang-mai/

As a follow up, the funerals took place last week, after a joint funeral service at a temple in Hang Dong, the body of his wife was taken to her home town for cremation.

Their 7 year old son seems to be doing reasonably well given the circumstances. Custody/adoption will be discussed this week.