What can be done about this?

Sooo my dad had a stroke and his health failed miserably from there. I was at work yesterday and my uncle called my job to tell them to release me so I can come to the hospital (I don’t have a cellphone at the moment so he couldn’t directly call me) and see my dad because things weren’t looking too good. My manager never told me there was a family emergency so I found out about my dad too late. I HATE my manager at this point and I want to know if I can sue him for this?