A doctor has been dubbed a "medical terrorist" after he was allegedly caught poisoning medicine.
Chilling footage shows Raynaldo Rivera Ortiz Jr, 59, from Texas, appearing to inject poison into the IV bags of patients.
The anaesthesiologist is seen coming from a room at Baylor Scott & White Surgicare in North Dallas, US, holding an IV bag.
He is seen walking down the corridor towards a fridge used for warming saline solution.
Raynaldo passes the fridge but then decides to deposit an IV bag inside instead.
He closed the door and looked around to see if anyone was watching before exiting the room.
The actions allegedly caused the death of a fellow doctor and 11 heart emergencies were recorded as a result of the poisoning.
The Texas Medical Board revoked his medical licence a week before he was arrested after dozens of patients suffered serious complications following routine operations from May to August.
None of the patients were under his care.
In a statement explaining his suspension the board said: "Respondent’s continued practice of medicine poses a continuing threat to public welfare."
One of the patients left affected by the poisoned bag was given to a 56-year-old woman who was undergoing cosmetic surgery.
According to the federal criminal complaint out of the U.S. Attorney's Office for the Northern District of Texas, the woman suffered life-threatening heart complications and was rushed to hospital.
Prosecutors showed the clips of Raynaldo at a court hearing last week where they described him as a "medical terrorist".
He was accused of making "poison bombs that exploded on unsuspecting patients".
Hospital staff told authorities a doctor putting an IV bag in the warmer was highly unusual.
Suspicion at the hospital were first raised when an anaesthesia patient of his stopped breathing during a routine operation on May 19, 2022.
An investigation found Raynaldo had "deviated from the standard of care by failing to maintain the patient’s airway" and failed to report the emergency.
Two days after he was told of the investigation, patients started to suffer unexplained heart issues during surgery.
Dr Melanie Kaspar, 55, died June 21, 2022, as a result of a heart attack after being fatally poisoned due to a contaminated IV bag.
She took the IV bag home to rehydrate due to an illness but tragically died after being poisoned by bupivacaine — a nerve-blocking numbing agent used for surgery.
An 18-year-old was also given saline for a routine ear, nose, throat surgery when "heart started beating out of control and his blood pressure spiked", according to the complaint on August 24.
The teen was rushed to hospital and was hospitalised for four days after being intubated.
A spokesperson for Baylor Scott & White confirmed they were helping with the investigation: "We have actively assisted authorities and will continue to do so; as such, we will also continue to limit our comments."
The medic is charged with tampering with a consumer product causing death or serious injury, intentionally adulterating a drug knowing it would likely cause an adverse health reaction.
If found guilty, he faces up to life in prison or the death penalty.
