When I turn the key in the ignition, I get zero turnover of the engine?

Hello,

So, I have not turned the car on for maybe a month and I decided to turn on the car today, but it wouldn't work. When I turned the key in the ignition, I got zero turnover of the engine. Also, when I put the key into the ignition, and turned the key forward (clockwise) before I tried to turn the car on, I did not get any light on the dash and my car radio wouldn't work when it usually does when the key is in this position. Even though I have read that getting zero sound when turning the ignition indicated a problem with the starter, I believed it to be a battery issue since when I charged the battery with myself starting battery charger, the lights on the dash turned on. I turned the ignition and still there was no sound. I was wondering if this was a battery or starter issue. How can I diagnosis this? I also suspect my vehicle's alarm was tripped and it's on anti-theft mode, so that might compound the issue. Any help would be greatly appreciated. Thank you so much.

Dev