How to kill a succulent

As the holiday season approaches, I thought why not incorporate plants with the decor.  Since ,  I have not been able to keep any plants alive from bamboo to orchids, I thought succulents are the best way to go. I purchased the succulents from Lowe's and bought glass containers and assembled the whole thing . I think they look really nice , but one of them became a victim to my overwatering tendencies. 

Obviously , havent watered them since, now waiting to see if it will revive.  On the weather front , it's raining.

I'm watching the rain as I sip my cardamom tea.