“Ten packages of what appeared to be marijuana and cocaine were found near the motorcycle and body”? That’s just bizarre.
If the guy was a drug-runner (and I’m not saying he was), you’d think whoever killed him would have taken the stuff.
If he wasn’t a drug-runner, then one questions why that stuff would be there, or even if it really was there (I’m not taking the word of something called the “office of public security” without a grain of salt).
That is weird. I doubt the guy was running drugs. He might have stumbled across something. And as a “sign”, the drug guys kill him and leave a bunch of drugs around as a warning. Also perhaps a show of “we are so powerful and rich - we can leave a bunch of drugs behind.”
And if he were a government agent doing secret squirrel type things, it might also have been left alone or even planted to "leave a message".
Not nearly enough info to make a good guess up, but the stories are fun anyway.