What is the output of this program?

#include<stdio.h>
#include<signal.h>
#include<stdlib.h>
 
void response (int);
void response (int sig_no)
{
    printf("%s\n",sys_siglist[sig_no]);
    printf("This is singal handler\n");
}
int main()
{
    pid_t child;
    int status;
    child = fork();
    switch (child){
        case -1 :
            perror("fork");
            exit (1);
        case 0 :
            kill(getppid(),SIGKILL);
            printf("I am an orphan process because my parent has been killed by me\n");
            printf("Handler failed\n");
            break;
        default :
            signal(SIGKILL,response);
            wait(&status);
            printf("The parent process is still alive\n");
            break;
    }
    return 0;
}