The authorities are working to clarify the facts and capture those responsible. This act will not go unpunished, and those responsible will be brought to justice sooner rather than later. 

Gutiérrez's family said on a GoFundMe post that he was born and raised in El Salvador before coming to the U.S. and becoming a citizen.

 His mother describes him as a person with a beautiful soul that was quickly recognized by anyone,  the family wrote.

 Ernesto, his partner of many years, will always remember and cherish the beautiful person he was,  the family wrote.  He was the sunshine in his life and will forever remember and cherish him. 

What is scopolamine?

According to the U.S. Embassy in Colombia, scopolamine has been used for years to carry out robberies of people targeted while visiting bars and nightclubs in Medellín, Cartagena and Bogotá.

The drug is a sedative that often leaves the victim disoriented, with no memory and sedated,  so they are easily robbed. 

The embassy said that if the drug is ingested or exposed, it can leave a victim unconscious for 24 hours or more and that overdoses can cause respiratory failure and death.

The casket of an American Airlines flight attendant arrived at DFW Airport after he was reported missing in Medellín, Colombia more than a week ago. His body was discovered days later in a creek. NBC 5's Alicia Barrera reports.