Could well be true, and could be we won't know for sure, but the CNN account says those claims are false. Well, the police officers being involved part. It doesn't say anything about the drug kingpin ordering the hit.
'"Our institution has no link to the event which occurred in the club Dial in the Venezuela Avenue, yesterday Sunday," National Police said in a news release.
They cautioned the public against speculation and the spread of false information.'
The CNN article doesn't say they are false, CNN is just quoting the National Police. It's also a vague quote. It could be a translation issue, but they don't explicitly deny that either of the shooters were police officers. "Our Institution" could mean that the officers were not representing the agency. It could also mean that they are former police officers.
Everyone should be skeptical, until we get more facts, I totally agree. I'm just passing along what one media outlet is reporting, not endorsing it as fact.