Deceased adult son

My son passed away at the end of August. I have his W2's. He was not married.  I am his next of kin(Mom). I know I need to fill out the 1310.  My questions are - Can I do this online?  Do I need to make him his own Turbo tax account sign in?  I live in Ohio, he lived in Michigan. Does that play a role in how I need to file?

 

Thank you for any help you can give,

Wendy