How would the parents of a worker who was shot and killed by an ex-employee while performing his duty at work start a claim?

There are different claims that can be filed by the parents of a worker who was shot and killed by an ex-employee while at work. While wrongful death is certainly an appropriate lawsuit to file against the ex-employee, the parents may also consider the liability of the owner of the premises/employer as they may also be held liable if a person is injured or killed on the premises of another by a third person's wrongful act or inadequate security.

It would be advisable to seek the services of an attorney to ascertain which claim would be more fruitful. Just make sure the lawyer you talk to specializes in such cases.