Update user record from workflow?

[Sandy7]

Hello everyone,

I have a catalog item with a workflow attached. 

After one of the tasks is closed in the workflow, I need to update the sys_user table (user record). There is a checkbox field called "sensitive_employee" that I want to be checked. 

So on the catalog item form, there is a "Requested For" variable, and the user record for that person is where this update needs to happen. 

So far I have a run script activity in the workflow that looks like this, but now luck. Any ideas? thanks!

var gr =new gliderecord("sys_user");
var ga = "u_sensitive_employee";
ga.setValue("u_sensitive_employee", 'true');
gr.update();

[Musab Rasheed]

Hello,

Here is the script

var requestedfor= current.variables.requested_for;
var gr= new GlideRecord("sys_user");
gr.addQuery('sys_id', requestedfor);
gr.query();
if(gr.next()){
gr.u_sensitive_employee = true;
gr.update();
}