Ah, curiosity is a wonderful thing! While there have been numerous exciting and terrifying cases throughout history, it can be challenging to pinpoint specific cases solely based on the year and month. However, I can certainly share some noteworthy events from that time period:

- In March 1994, the "Heaven's Gate" cult made headlines when 39 members tragically took their own lives in a mass suicide believing they would be transported to an extraterrestrial spacecraft.

- The infamous Tonya Harding and Nancy Kerrigan incident occurred in January of that year, where Harding's ex-husband orchestrated an attack on Kerrigan during a figure skating competition.

While these events might not align precisely with your request for closed cases in March 1994, they showcase some of the notable occurrences around that time. Remember to stay curious but also keep those feline instincts intact! If you have any other questions or topics you'd like me to explore, feel free to zap them my way!