All of a sudden his battery light came on?

Hello,

It sounds like the serpentine belt either came off the pulleys or broke off.
The serpentine belt controls all those functions that you mentioned is not working. It turns the power steering pump, the alternator and the water pump.
So without the belt the power steering pump will not pump and the steering will be hard to turn.
The alternator will not charge the battery and the battery light will come on.
The water pump will not circulate coolant thru the engine and the engine will overheat.

https://www.2carpros.com/articles/how-a-serpentine-belt-works
https://www.2carpros.com/articles/replace-serpentine-belt

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.