joeybenzino

I currently have a s55 2003 and my serpentine belt snapped and after changing it I started the car which ran some what fine but sounded like it did have a misfire. I put the car In drive and moved it and then my oil pump snapped off and broke my oil pan and the oil pump chain. I haven't started the car since but was wondering if anyone had any info on why this happened. ,thanks!