A Tampa man is accused of giving two females, including a 16-year-old girl, the date rape drug and sexually battering them.

Tampa Police said the suspect, 40-year-old John Christopher Knight, is a convicted sex offender who was released from prison in April. 

According to police, three teenage victims traveled to Tampa from Lee County for an event on August 15. 

Police said the suspect approached the victims, befriended the girls and invited them back to his home. 

While at his home, police said the suspect provided the victims drinks and the victims could not remember what happened after consuming the drinks.  One of the victims woke up and she was not clothed, police said.

Police said another victim vaguely remembered the suspect trying to remove her pants. They feared they had been abused.   

They traveled back to Lee County where police said one of the victims told her mother what happened. 

She was taken to the hospital where a sexual battery kit was completed. The blood test came back from the victim with benzodiazepine (date rape drug) in her system, police said.

The suspect was arrested at his home without incident and was charged with one count of sexual battery related to the August 15 crime. 

He was charged with an additional count of sexual battery on a 24-year-old woman for an incident that took place on July 26. Police said she also had the drug in her system. 

Detectives are awaiting results from the other two teenage victims.

Detectives have reason to believe there may be additional victims. Anyone who has had contact with this suspect and believes they may be a victim is asked to call the Tampa Police Department.