Get Entity by Attribute value from EntityCollection with LINQ

Guid incidentid = (Guid)dataReader.GetValue(0); // just to let you know what this variable is

foreach(Entity incident in crmResult.Entities)
{
    if(incident.GetAttributeValue<EntityReference>("incidentid").Id == incidentid)
    {
        //Found! Do stuff here...         
    }
}


What I tried

if(crmResult.Entities.Where(x => x.GetAttributeValue<EntityReference>("incidentid").Id == incidentid))

And

Entity incident = from x in crmResult.Entities
where x.GetAttributeValue<EntityReference>("incidentid").Id == incidentid
select x;

And some other things but my knowledge in linq ends with FirstOrDefault.