Are those bullets?

Last week, a car carrying a freed Italian hostage was shot at, killing an Italian intelligence agent. Much controversy has ensued. Read the lastest. I found this quote rather interesting:

The idea that Calipari was killed by friendly fire is painful to accept, the premier said. But he reassured lawmakers: "The United States has no intention of evading the truth."

Are you kidding me?! Who do they think they are dealing with? This administration is almost defined by a lack of accountability.
I have no idea what happened that Friday, and I'm not wont to believe in conspiracy theories, but come on!