Continuing his evidence, Sebastian said he went to Radford Road Police Station to speak to an officer.

He said the officer told him the incident sounded like it was caused by mental health or drugs.

Sebastian again said he did not want them to talk to Calocane, due to being concerned over the situation getting worse.

He said that the officer told him they would file a report, which would be flagged to whichever agency was dealing with him.

The student said the officer did not specify which agency, but presumed it was mental health assistance.

He said he did not remember receiving "any advice that was not obvious", but ended up locking his bedroom door after the incident.

"I know he is aggressive and that he could harm me again out of nowhere," Sebastian said.

"I just wanted to make sure it did not happen again."

Sebastian said after the interaction, he reported it to his supervisor at the University of Nottingham.

He said the supervisor "wasn't very helpful", and told him "if he does it again then fight back".

Following the conversation, he called 101 to report the incident to Nottinghamshire Police.

During the call, which was played to the inquiry, Sebastian told the police about the "violent" incident.

He said Calocane grabbed him and pushed him against a wall.

He told the force he was "a bit hesitant" about an officer coming around to his flat, as he did not want it "getting any worse".

Sebastian said he was uninjured, but added it was an "unpleasant" experience and suggested that Calocane "might have some mental health issues".

Sebastian is now describing being "grabbed" by Calocane - referred to in the inquiry as VC - in July 2021 after returning home.

"When I entered the flat, VC came out of his room which was opposite the flat front door, and he was walking with me, and he took the box [I was carrying] from me as if he was helping me put it down," he said.

"Then he grabbed hold of my shirt and my arm and pushed me against the wall and said some confusing words.

"Then he basically said someone would contact me and that if they contacted me, I should tell them that VC would find them."

Sebastian said Calocane appeared "quite angry" and "quite serious".

However, after acknowledging what Calocane had said, Calocane said "good man" and went back to his room.

"It sounded like he was in trouble and trying to fix it, if that makes sense," Sebastian told the inquiry.

Sebastian said he would routinely leave the flat at about 06:00 to go to the gym.

On one morning, when he returned, Calocane followed him into the kitchen, and asked him if there was someone else in the flat when he left earlier that morning.

"It was a bit of an odd question," he said.

"I couldn't understand why he thought there might have been someone in the flat.

"I was confused, but dismissed it pretty quickly."

Sebastian recalled two occasions when Valdo Calocane was visited by healthcare workers.

"I think one occasion was in lockdown, but I can't remember which one," he said.

"I didn't know anything but I guess I overheard a conversation at one point where they asked him whether he was eating right, and things healthcare workers would ask."

Rachel Langdale KC, counsel to the inquiry, asked Sebastian if he thought Calocane had any issues with his mental health.

"I don't know. It wasn't obvious to me," he replied.

Sebastian has told the inquiry that he moved into a shared flat with Calocane and another person in Nottingham in September 2019.

He said none of the three knew each other, and would spend time together socially.

"He [Calocane] was fairly quiet," he said. "We didn't speak much.

"I think we acknowledged each other. It was pretty normal I would say."

When asked if they kept the flat clean, Sebastian said it was "typical student accommodation".

A former flatmate of Valdo Calocane, known only as Sebastian, is now giving evidence to the inquiry.

We heard earlier in the inquiry that Sebastian lived with Calocane for a period between 2019 and 2020, and then again in 2021.

We now know Valdo Calocane as the man responsible for killing three people in Nottingham on 13 June 2023.

But, what else do we know about perpetrator of the Nottingham attacks?

Calocane, who referred to himself as Adam Mendes, was born in Guinea-Bissau on 4 September 1991.

His family moved to Portugal when he was three, before coming to the UK in 2007 when he was 16 years old.

The triple killer completed a degree in mechanical engineering at the University of Nottingham, graduating in June 2022, when he was aged 30.

During his sentencing, defence barrister Peter Joyce KC said Calocane's early life had been "uneventful" until his mental health issues started in 2019.

Image source, Helen Tipper

As the inquiry continues, it is worth remembering what this public inquiry is hoping to achieve.

Led by retired senior judge Her Honour Deborah Taylor (pictured), the review will examine the attacks, including hearing the concerns of survivors and bereaved families.

Speaking on the opening day of the hearings last Monday, Rachel Langdale KC, counsel to the inquiry, suggested that "key themes" be identified, providing a "baseline critique upon which we will build".

Image source, PA Media

Meanwhile, the victims' families have described it as "a test of whether this country is prepared to confront failure and fix it".

"For years we have heard apologies. We have seen reviews, we have read reports, but apologies do not keep the public safe - change does," they said in a statement.

"We are not here for sympathy, we are here for safeguards, not reflection, not regret. Reform.

"That is the legacy Barnaby, Grace and Ian deserve, and that is what public safety now demands."

Once all evidence has been heard, the chair will have to provide a final report and make recommendations by May 2027.

The inquiry has heard that FTAC - a specialist unit that manages threats posed to public figures and protected sites by "fixated, lone individuals" - could have looked at Valdo Calocane's medical records, but it did not.

Supt Busby-McVey, of the FTAC, told the inquiry the department - which looked into Calocane after he visited the MI5 headquarters on 31 May 2021 asking to be arrested - had a "very narrow remit".

Tim Moloney KC, representing the bereaved families, asked: "Could an FTAC assessor access medical records if they thought it was necessary it order to make an appropriate assessment?"

"For that, I would say yes," Busby-McVey said.

Sophie Cartwright KC, representing the survivors of the Nottingham attacks, is asking why Calocane was not asked why he had attended Thames House asking to be arrested.

She said: "There's an absence of relevant information by not asking the question, would you agree?"

"Yes," Busby-McVey replied.

During the first week of the inquiry, former senior judge Deborah Taylor KC heard from a number of witnesses regarding their contact with Valdo Calocane.

Our reporter, Asha Patel - who was in London last week and is at Mary Ward House today - spoke about the week of evidence.

The hearing is now continuing to hear evidence from Supt Lorraine Busby-McVey.

Valdo Calocane plunged Nottingham into chaos on the morning of 13 June 2023.

Police were first called after Barnaby Webber and Grace O'Malley-Kumar were stabbed to death in Ilkeston Road at 04:04 BST, while walking home from a night out in Nottingham.

An hour later, Calocane tried to gain access to a residential hostel in Mapperley Road, but was forced to retreat after being punched in the face.

At 05:14 BST, Ian Coates was stabbed while in his van in Magdala Road. He was pulled from the vehicle and Calocane drove it away.

Nine minutes later, the triple killer drove into Milton Street and hit pedestrian Wayne Birkett, who suffered serious injuries.

Calocane then knocked down Sharon Miller and Marcin Gawronski as they crossed Market Street six minutes later.

At 05:34 BST, Calocane was arrested after officers managed to stop the Vauxhall Vivaro van in Bentinck Road.

Image source, Reuters

Speaking ahead of the inquiry, the families of Barnaby Webber, Grace O'Malley-Kumar and Ian Coates said they hoped the inquiry would give them "the full truth".

Grace's father, Dr Sanjoy Kumar, said: "She is the driving force behind everything that we do and everything that I do, and we will be relentless.

"The only way we will do that is by holding people accountable, otherwise things won't change.

"We want absolute transparency. Patients and relatives deserve transparency."

Meanwhile, Emma Webber, the mother of Barnaby, said the beginning of the inquiry hearings came with a sense of "validation".

She said she wanted "the truth".

"I mean the proper truth, not just versions thereof," she added.

After the break, we're expecting to hear from Sebastian, a former flatmate of Valdo Calocane.

We've already heard the inquiry make reference to incidents involving Sebastian.

Sebastian, the inquiry was told, lived with Calocane between 2019 and 2020, and again in 2021 when Calocane moved back to accommodation near the University of Nottingham campus in Ilkeston Road.

We heard in opening statements that on one occasion in July 2021, Calcocane "grabbed hold of Sebastian and forced him back against a wall".

In a second incident in the same month, Sebastian heard Calocane trying to get into his room - which was locked - in the early hours.

We have also heard that there were further phone calls from Calocane to Sebastian and in 2022, Calocane approached him at the gym.

The inquiry heard a dissemination report - FTAC's assessment - was passed on to Nottinghamshire Police to make officers aware someone in its area had visited a "protected site in London".

Supt Busby-McVey said she would have expected the force to then carry out its own assessment, and to work with local mental health services and local authorities to carry out a welfare check, or refer Calocane to other services.

"I would have quite liked for that to have happened," she said.

Although the report was sent to the force, it was not available to all officers.

Supt Busby-McVey said a new system was now in place to share information better with other forces.

As the inquiry breaks for lunch, we can reflect on what has been heard so far today.

Earlier this morning, the inquiry heard from PC Foster, who responded to calls that Calocane had visited the MI5 headquarters in Westminster on 31 May 2021.

He rang a bell to try and gain entry twice, but was refused.

Calocane told Foster he wanted to speak to someone, but would not disclose what he wanted to talk about to officers.

He then left the area in an Uber.

The inquiry then heard from Supt Lorraine Busby-McVey, from the Met Police, who works within the Fixated Threat Assessment Centre (FTAC) - a specialist unit that manages threats posed to public figures and protected sites by "fixated, lone individuals".

She said Calocane was "looked at", but did not meet the threshold for the FTAC criteria.

Bodycam footage shown to the inquiry earlier showed Valdo Calocane was questioned on whether he had ever been arrested before.

While standing outside of MI5's Thames House in London, he can be heard saying "not really", before going on to tell officers that he had been detained previously.

The inquiry has been told the Fixated Threat Assessment Centre (FTAC) had access to NHS documents, which summarised texts from Valdo Calocane to his brother Elias.

In Elias's account, shown to the inquiry, Calocane told him he was hearing voices.

It said Calocane believed "they" [unspecified] rented the apartment next to him to keep an eye on him.

Elias also said his brother told him "the impossible was happening, something extraordinary, or he was losing his mind".

Busby-McVey said this and Calocane's history of violent incidents would not have met the FTAC assessment criteria.

Bodycam footage from PC Foster, who spoke to Valdo Calocane outside MI5's London headquarters, was shown to the inquiry earlier.

The officer had been called by Thames House, after the triple killer had rung a bell in an attempt to enter the building on 31 May 2021.