Find my iPhone after Apple ID password change

You can also erase the computer using Find My Phone. The computer will need to come on line to execute the command. Do not remove the computer from your account to ensure the Activation Lock remains active.

Find My iPhone - Erase your device 

Apple's suggestions from the article below.

If you can't find your Mac

Find My Mac is the only Apple service that can help track or locate a lost Mac. If you didn’t set up Find My Mac before your Mac was lost, or you can’t locate it, these steps might help you protect your data:

1. Change your Apple ID password to prevent anyone from accessing your iCloud data or using other services (such as iMessage or iTunes) from your Mac.
2. Change your passwords for other accounts you use with your Mac, including email, banking, and social sites like Facebook or Twitter.
3. Report your lost or stolen Mac to local law enforcement. They might request the serial number of your computer. You can find this information on the original box or receipt you received when you purchased your Mac.

Find My Mac - If your Mac is lost or stolen

If the laptop is listed, Find My Phone is still working for the computer.

You can test by going to iCloud.com/Find My Phone and seeing if the device shows there with the erase option.

You are welcome. That is a possibility. It depends on what is being done with the laptop.

You are welcome.