2008 Suzuki Grand Vitara Q&A

2008 Suzuki Grand Vitara Question: car won't start. battery okay and sound of trying to start heard, but doesn't.

The car worked fine last night and today it would not start for my husband. -
Answer 1
I take it that it turns over if so then I would check fuel pressure and for spark -
Answer 2
How do you know your battery is good? -
Answer 3
poss battery or did he leave something on and battery is low volts -