Police in Norwalk say they are still investigating whether a man is connected to as many as seven overdoses this weekend.
Eric Frank, 29, appeared in court Monday.
Frank was arrested Saturday during a police sting operation in a Best Buy parking lot.
According to police, he tried to sell crack-cocaine that may have been laced with fentanyl.
Investigators say Frank also attacked a police officer.
He's due to return back to court next month.