THIS is the haunting last picture taken of a student nurse before she vanished four weeks ago. Cops have now arrested three people after Owami Davies, 24, disappeared from Derby Road, West Croydon, on July 7 just after midnight.

PAStudent nurse Owami Davies, 24, who has been missing for four weeks '/ '

Met PoliceOwami in a shop on Derby Road, West Croydon on the night she disappeared '/ '

Met PoliceHer friends and family have appealed for her to come home '/ ' A 32-year-old was arrested on suspicion of murder on Tuesday at an address in South Croydon and remains in custody, Scotland Yard said on Wednesday. It comes after two men, aged 23 and 27, were arrested in the Croydon area on suspicion of murder on Monday. Owami's mother today spoke directly to her daughter in a statement. She said: "There are many friends and family who love and care for Owami and all of them want to see her safe return. "Owami \- if you see this appeal please believe you are not in any trouble, we just want you to come back to us. "Please leave a message if you can to let us know you are okay, we are so very worried about you. ...This is such a terrible time for all those who love Owami and I am pleading for anyone who can help find her to contact police. "Every day we hope to hear the news that Owami is coming back to us, your help might make it so." Most read in News 'WE KNOW HOW SHE DIED' Gabby Petito's mom breaks down as she slams Brian's 'confession' FIRED UP Inside chaotic moments at Woodstock '99 that triggered WARZONE to erupt CELL TIME? Alex Jones could face criminal trial & year in jail after his texts were exposed HOUSE OF HORRORS Mom & son's dismembered bodies found after kidnapped daughter's escape TRAGIC CRASH Mom & daughter, 8, died in 8-car crash after getting trapped in burning car FATAL CRASH Congresswoman & two aides among 4 people killed in horror car crash Police today released images of Owami on the night she was last seen in a shop and CCTV of her walking in Derby Road. In particular, cops are keen to speak to a potential witness \- the driver of a white van that was parked in Derby Road. They say Owami was in the company of a man and crossed the road just as the van pulled out. Detective Chief Inspector Nigel Penney, said: "We are working hard to find Owami but we really do need the public's help. Owami is very vulnerable and the longer she is missing the more we worry that she has come to harm. ...As a result of extensive CCTV enquiries we have a clearer idea of Owami's movements, but we still need the public to contact us and tell us what they know. "We would obviously like to speak to the driver of the white van that passed Owami in Derby Road, but anyone with information should call. "You can call and speak to officers, or if you prefer you can contact Crimestoppers who will never ask your name, trace your call or IP address. ...They are 100% anonymous and you can call them in complete confidence. Owami's family are living through a nightmare and are desperate for news. "I would ask anyone who thinks they can help to come forward \- as the days pass the anxiety of Owami's family will only get worse and your call could be the one they are praying for." Any witnesses or anyone with any information is asked to call police on 101 or contact via Twitter @MetCC. Please quote reference 22MIS025307. To give information anonymously contact Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org