Is it right to fire an employee of she had a car accident and her child got lost that's why she didn't able to show up for her work place?

No it is not right to fire that employee. Based on your question, that employee would be wrongfully dismissed and is owed severance. I would encourage that employee to visit the severance pay calculator our firm has developed to see what he/she is owed (www.SeverancePayCalculator.com). I would also encourage that employee to call us an set up a consultation with one of our employment lawyers.