[Hardastarboard]

They appear to have knowledge of police investigative procedures.

With all the CSI shows on TV teaching all of us forensics you'd have to be a damned idiot to leave any usable clues behind.

[Travis McGee]

"They appear to have knowledge of police investigative procedures."

With all the CSI shows on TV teaching all of us forensics you'd have to be a damned idiot to leave any usable clues behind.

More likely they are active duty Mexican cops, wearing masks, getting in a little overtime from their real bosses in the cartels.