Stolen computer. My phone is still showing as associated with itunes on that computer, can this help me?

My computer was stolen 3 weeks after I purchased it along with the thefts methodically picking out my car while all my luggage was packed inside. I do not have the serial number to the HP Envy Touchscreen laptop. And it's not even listed on the receipt and the used computer place has good models, but appear to have poor tracking and accounting skills.

Is there anyway that because my itunes account is still attached to my phone that I may gain any information that may help me?

From location... to even just the serial #. Or even if they've opened the itunes...

Or is there some sort of way to remote into my itunes/cloud while using the phone... I know who likely stole it and can often be in very close range. .. heck if I had my home internet portable for a moment if I was near the computer and it was on it would instantly connect. It also can instantly connect to my personal hotspot.

The only other connection I have to the computer is that I downloaded a single code McAfee program which is set to run auto updates and may provide info about when and perhaps from what gps location updated?

Lastly, the phone device with the same apple ID registered to itunes is currently my iphone 6, i am working on repairing my iphone 6s plus screen that had been originally used. But it appears as if that won't make a dramatic difference.

Any thoughts to help?

Thank you!