96 Tacoma Won't Start

I have a 96 Tacoma with the 2.4 4 cyclinder engine. After parking it in my garage last night, I went to start it this moning and the engine cranks fine but does not attemp to start. Any ideas as to what the cause would be? I have had no problems starting in the past and it has 130,000 miles on the engine.

Spark, fuel, or air. Try removing air filter. Process of elimination....