You're probably right and they'll likely know quickly as soon as they go deep into the victims background. Then again there have been countless murders where the victims were found in pieces, different locations etc and they never had anything to do with drug gangs. But given the venue here, it was probably a drug gang involved, yep.
Btw, didn't they say the victim worked in the chemical industry? That's a flag if so.
And Dad says he was living in his truck to save money to pay bills.
Just who did he owe?
You need a pretty extensive BG check and drug testing to get regular employment in the chemical and refining industries.