Why its showing stack overflow error? How to avoid this?

// CPPProg.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
using namespace std;
#include <string>
class Employee
{
	public:
		char *empName;
		int empRolNo;	
public:
	Employee()
	{	
		delete []empName;
		cout<<"Default Constructor"<<endl;
		empName = new char[3];
		strcpy_s(empName,strlen("aa") + 1,"aa");
		empRolNo = 10;
		Employee e5;
	}
	Employee(char *name,int r)
	{
		cout<<"Param Constructor\t"<<this<<endl;
		this->~Employee();
		empName = new char[strlen(name) + 1];
		strcpy_s(empName,strlen(name) + 1,name);
		empRolNo=r;
		Employee e1;
	}
	virtual ~Employee()
	{
		cout<<"Desstructor\t"<<this<<endl;
		delete []empName;
		empName=NULL;
	}
};

int _tmain(int argc, _TCHAR* argv[])
{
	Employee e1,e2("Satya",123);
	getchar();
	return 0;
}