Hi and thanks for your question....
First off, sorry that the situation is where it is at.
Security is tight when it comes to e-mail accounts, but there MAY be ways to get into it. You said this is an msn account?
So do you know his screen name?
If you know that, we are halfway there. The only tricky part is getting the password. First logical step is to try any password XXXXX think he may use. As a security professional, I have found out that passwords are usually simple...for guys it may be their favorite sports team, or favorite car, or birthday...never forget the most used passwords, they are "password" [email protected], and Pa$$w0rd.
If we cant guess them, is there a way you can get access to his laptop? If so, you can open Internet explorer and hit the drop down box where the http:// addresses are. If you can find one to his e-mail client, he may have not logged off which will get you right in.
Let me know if any of these can help you out..