I got home turned my car off now it will not start?

I got home, turned my car off for just a second to run inside and grab something, came back out, tried to start the car. It turned over clicked a few times and then nothing. My dashboard lights still come on and so do my head lights. I tried cranking a few more times with no clicks or anything. We tried to boost it off that didn't work either. My brother said one of my battery cables not sure if it was the negative or positive cable was extremely hot when we were trying to start it. My brother tried tapping on the starter no luck. We have checked the fuses, and my brother even replaced the starter still nothing. Any idea what else it could be?