Police want to identify three people who knew serial killer Peter Tobin when he lived in Brighton.

Tobin, serving three life sentences for the murders of schoolgirl Vicky Hamilton, 15, Dinah McNicol, 18, and Angelika Kluk, 23, married his first wife Margaret Robertson in Brighton in 1969.

At the time Tobin was 23 and Ms Robertson was 18. Both lived at separate addresses in Dyke Road, Brighton.

The people police want to identify are a couple called Mr and Mrs Hardy, who lived in St Michael's Place, Brighton at the time Tobin married.

They were present at his marriage.

Officers also want to talk to man he was friendly with called Paul.

His full name was possibly Paul Maguire. He lived at the same place that Tobin worked at the Seafront Hotel in Marine Parade, Brighton.

Giving an update during a new appeal on Crimewatch, Detective Superintendent David Swindle, leading the UK-wide investigation into Tobin's past, said: “Since that last appeal we've identified seven women that have been raped by Peter Tobin and we've followed up thousands of lines of inquiry including the commencement of the excavations in Brighton and Hampshire.

"Unfortunately, we never found anything at these, but the search for the truth regarding what Tobin has done continues."

More than 700 people called in with information on Tobin following the last Crimewatch appeal on the killer's past in July last year.

“We are appealing for two people who were witnesses to his first marriage to Margaret in 1969 in Brighton and a third person is a male called Paul who we know Tobin was very, very friendly with, he's possibly called Paul Maguire.

“He lived at the same place that Tobin worked at the seafront hotel in Brighton.

"They were very friendly. He was linked in to the biker scene and this guy Paul spoke about the French Foreign Legion. He's a close friend of Tobin.”

Do you know Paul or the Hardys? If so please call the Argus on 01273 544 539, submit a comment below or email news@theargus.co.uk