If a suppressor leaves such a mark on a bullet, the suppressor would be seriously damaged, and the bullet would go wild, hitting randomly. A real suppressor doesn't touch the bullet.
The drug found on the woman who was murdered at the beginning of the episode is, after analysis, found to be a derivative or analogue of atorvastatin calcium, which is described as a painkiller. It is in fact used to lower cholesterol and a known side effect is possible headache or abdominal pain. It is unlikely that the derivative, called "Zorax" would have such markedly different effects. (Possibly a deliberate mistake by the makers of CSI: Miami)
The investigators try tracing the writer of the company blog. During investigation, they discover the writers IP address, which is listed as 310.260.613.0. In reality, the decimal notation of IP4 addresses consists of 4 numbers ranged from 0 to 255, separated by full-stops. The address of 310.260.613.0 is obviously not only fake, but an impossible address.