You are on the right track! Lambert Hepting (Jr.) was accidentally shot in the face by his 9 year old daughter and he died. Lambert was a jeweler, just like his father, Lambert Hepting Sr. They owned Hepting Jewelers, later Hepting and Ferrar Jewelers. The Hepting family now does not own any part of the business, but it is still running in Stirling, Scotland. Somewhere I have the newspaper article about Lambert's death.

Lambert Sr. is my husbands gr-gr-grandfather. I'd be glad to share with you what I can.