Officers are also looking to see whether Cain is connected to a string of rapes across October and November, it has been reported

Now police say 24 hours after the shooting he held another couple at gunpoint, raped the woman, and forced the man to give him oral sex

Cain went on the run for three days before eventually being arrested

When Gold tried to stop the crime, Cain robbed then shot him, cops say

Police say Cain was trying to kidnap a woman when Gold saw him

The New Orleans man who shot a good Samaritan in the stomach as he tried to stop an apparent kidnapping raped a couple at gunpoint the following day, police have said.

Euric Cain, 21, was arrested last month after CCTV showed him shooting medical student Peter Gold, 25, when he intervened after seeing Cain dragging a woman towards a, SUV.

Cain fled the scene and police now say that the next day, while on the run, he jumped into a couple's car at around 3am, raped the woman and forced the man to perform oral sex on him.

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Euric Cain, 21 (left), the New Orleans man accused of shooting medical student Peter Gold, 25, (right) in the stomach last month is now accused of raping a couple at gunpoint less than 24 hours later

Cain was hunted by police after they release this CCTV footage which officer said shows him shooting Gold when the student saw Cain involved in a kidnapping and stepped in

Cain, who was already facing charges of attempted murder, armed robbery and kidnapping, has now had first-degree rape and carjacking added to his rap sheet.

Meanwhile 17-year-old Nictoria Washington, Cain's girlfriend, has been charged with helping to shelter him after the attacks.

Cain's alleged crime-spree began on November 20, when CCTV shows a man that police identified as Cain in the Lower Garden District holding a woman in a headlock at around 4am.

Footage shows the woman being dragged towards an SUV before Gold's car approaches the intersection at the top of the street before stopping.

He then drives down the street and stops just out of shot, before getting out to confront the hooded man, who is armed with a weapon which resembles a TEC-9 semi-automatic pistol.

The highly disturbing footage shows Gold up against the wall, while the man identified as Cain points the weapon at him, before shooting him in the stomach.

As Gold collapses on the floor in agony, the hooded figure stands over him and points the gun at his head before it apparently jams.

The harrowing footage, the man police identify as Cain can be seen dragging a woman along the street (left) before Gold (right) stops his car and walks over to confront him

Investigators say Cain asked Gold for money, and when he didn't have any, shot him in the stomach. Cops say Cain then tried to shoot Gold in the head (left) but his weapon jammed (right)

Courtesy FOX 8

The attacker then appears to be trying to get the weapon working again, but when his attempts fail, he flees away from the camera.

According to police, Cain had demanded money from Gold, but when he said he didn't have any money on him, he opened fire.

New Orleans Police Department chief Michael Harrison subsequently praised Gold for his actions, saying: 'There's no greater selfless act than to stop and help someone perhaps who you don't know, for reasons you don't know.'

After shooting Gold (pictured), police say Cain held another couple at gunpoint, raping the woman then forcing the man to perform oral sex on him

He also vowed to track Gold's shooter down, while mayor Mitch Landrieu vowed: 'We're going to find you, and you're going to spend the rest of your life behind bars.'

Police caught up to Cain three days later, but according to a new press release, they were unable to stop another horrific attack.

Cops say that, almost exactly 24 hours after they first started looking for Cain, he jumped into a couple's car at around 3am in the Treme Lafitte district, around three miles from where the shooting took place.

Once in the back seat of the vehicle, the couple say he pointed a weapon at each of their heads, took their valuables, and forced them to drive to an abandoned building around four miles away.

When they arrived, police say Cain raped the woman then forced the man to perform oral sex on him, all while aiming the weapons at them.

Once the attack had finished, investigators say Cain forced them out of the car, then drove away.

Cops say that, when they arrested Cain for shooting Gold, he was 'in possession' of the couple's car, and had used their credit card at a store in the city.

When they checked CCTV footage, Cain could be seen using the card, before climbing into the same vehicle and driving away.

DNA evidence from the sexual assault was also linked to him, a department press release said.

Also in custody is Nictoria Washington, 17, Cain's girlfriend who police accuse of helping to hide him in the days after Gold was shot

Officers described their investigation as 'ongoing', which The Times-Picaynne said Cain is also suspected in a series of rapes reported in October and November.

Chief Harrison confirmed that police were conducting tests to see whether Cain is linked to another other open cases, but refused to go into specifics.

He added: 'What I can say is the actions that we've seen, the actions that you've seen, demonstrate to us that he's a very dangerous individual.