Very very sorry to hear this. A bless that your other half is unscathed, and that you're presumeably going to be okay in the long run.
I guess no one got the van's number? Or stopped to help? I'm sure the Police got involved, perhaps prompt them to check CCTV footage of the surrounding area.
In the meantime - you'll be needing this:
http://www.mib.org.uk