1998 Chevy Blazer Car won't start

I drove my car to work and when I was going home it didn't start.

I called the my emergency auto service and a mechanic came to my car. At first, the mechanic thought it was just a dead battery so he charged the battery and it sounded like it wanted to start, but it wouldn't turn-over.

He then cleaned the ends of the battery cables to remove the corrosion and rust and still didn't start.

Looked in the air filter to ensure there were no clogs and that wasn't the problem.

The mechanic looked in the fuse box and found that there was one that was broken. The fuse was labeled "ECM I".

He replaced this fuse, but it broke as soon as we tried to start the engine. We tried four times and couldn't figure it out.

Any help and guidance would be greatly appreciated.

Joe