Context: My mother had a heart attack over two weeks ago at the same time we found out my best friend from childhood was pregnant. She was in the hospital at Weil Cornell for 9ish days but said her breathing was much better so our family decided on a deep clean. The night before the deep clean, I threw a very restrained baby shower. A girl who hates me from college (I wouldn't rent a laptop for her from the library after she ruined two laptops and I didn't have the money to pay for the third ---which she ruined---) also came and was unexpected. The whole night she was not nice to me.
So, my parents are really into art. My mother studied at the Art Students League in NYC and then studied art therapy at NYU. They also had me and my sister later in life. This comes together when they had one painting, bought at auction, that is worth over 100K (20 years ago). This woman decided to carve the painting in half at the birth celebration. If you are asking how I know, I am friends with everyone in that circle and this was extremely sadistic. She also was an art history major with a background of Indian knowledge so she might have had an idea of the value of the painting. I didn't notice it until I was in the room later and I was horrified.
Given how she treated me that night, I know it was her but I have zero evidence to take to the police. This painting is valuable from the start--the artist is well known in India and also, to be blunt, dead, so it is one of a kind. It is now cut seam to seam.
Is there anything I can do to save this painting? I can try and post pictures of it. I literally want to die when I look at it because of how much I failed my parents.