This may not "prove" anything, but it's a situation you might find interesting, from here in out little town, that I just found out about:

Young woman living in dirty, extremely cluttered trailer with her two toddlers and the marginally employable husband whom she convinced to marry her after the birth of the second child. Young woman herself has history of behavior such as cutting self...

Young woman calls her uncle one day, asks his assistance in obtaining a carry permit. Uncle refuses.

Shortly after, she talks her uncle into accompanying her into a gun shop. She then lets him know that she has obtained the permit, and points out the gun she wants him to buy for her. Uncle turns around and walks out of gun shop.

Again shortly after, she has purchased the gun and is wearing it regularly.

One month ago: the husband is dead from a shot from the same gun. The record at this point says self-inflicted. The uncle, who has heard his niece's version, and who knows all parties involved very well, says he hasn't the least idea what to believe as to what actually happened.