This Really Exists: CIA's Heart Attack Gun!

The dart from this secret CIA weapon can penetrate clothing and leave nothing but a tiny red dot on the skin. On penetration of the deadly dart, the individual targeted for assassination may feel as if bitten by a mosquito, or they may not feel anything at all. The poisonous dart completely disintegrates upon entering the target.

The lethal poison then rapidly enters the bloodstream causing a heart attack. Once the damage is done, the poison denatures quickly, so that an autopsy is very unlikely to detect that the heart attack resulted from anything other than natural causes.
Posted By Abdul