She did not say that his crimes were politically motivated. She pointed out that the MSM is very quick to blame politics if there is even the slightest connection to the right. (She didn't even mention the Aurora, CO, movie theater shooting which was initially blamed on a Tea Party member before they discovered that it was a different guy witht he same name.)
The fact is if this guy praised Limbaugh, Medved, and O'Reilly instead of Matthews, Scarborough, Blitzer and Morgan, this would be a political story and the senate would be debating the fairness doctrine today. Malkin wrote to point out this double-standard, but apparently that's a bit too nuanced for someone with your limited reading comprehension.