Putting my notice in but my coworker just passed away, any advice?

Putting my resignation in tomorrow but coworker passed away

The title basically says it all. I’ve been at my current job for the last two years and have been trying to get out since the beginning of the summer. The workplace is toxic and miserable. Recently I interviewed and was offered a job at another company. I accepted and was planning on putting my 2 week notice in on Tuesday. I found out this morning that one of my coworkers on my team passed away. I obviously feel terrible for her family and had no animosity towards her.

I’m not sure how to move forward with leaving the team. I feel like an asshole, but I start on my new job in 2 weeks so I need to tell my company now. Any advice on how I can handle this situation!