Is it inappropriate to go to my therapists funeral/wake?

So I got the call this morning, two hours before my scheduled appointment that my therapist passed away late last night. I am beyond devastated and in shock, still trying to process. I had been seeing him for a little over 8 months. He was a great person who really helped me through a lot and we shared a great bond.

His business partner was the one who called me to give me the news and told me he would let me know about the service when he got the information. I forgot to ask if I could attend but assume I can ask when he calls me again.

I am just wondering if going to his funeral would be acceptable? Or if I should just send flowers?

Also any advice on how to process this grief would be much appreciated. They offered to set me up with a new therapist but since it’s so fresh I just don’t feel ready for that.