Crimewatch appeal on Samuel Guidera train station death
A TV appeal will be made on the BBC Crimewatch programme over a student who was stabbed in the heart in south-east London.
Samuel Guidera, 24, was attacked soon after leaving Penge East station at 2155 GMT on 12 February.
A reconstruction of Mr Guidera's last movements will feature on the programme when police will reveal the victim's wallet was taken.
A 39-year-old man and an 18-year-old man have been bailed until April.
Police said several members of the public rushed to help Mr Guidera as he lay in the road at Bailey Place at the junction with Newlands Park.
Mr Guidera was taken to hospital but pronounced dead at 2255 GMT. He died from a single stab wound to the heart.
Police said the 24-year-old had travelled on the 2117 GMT train from Bickley to Penge East, crossed the footbridge over the railway to the Newlands Park exit en route to meet his friend.
He went into the local convenience store before walking to the bus stop on Newlands Park where he was attacked.
Police want to hear from people who were on the Victoria to Orpington train and got off at Penge East Station at 2141 GMT.
Det Ch Insp Laurence Smith, who will appear on the show, said: "We urgently want to trace and speak to the people who were on that train, or had just got off at Penge East station.
"They may have information that would assist the investigation and it is really important that they come forward and speak to us.
"Sam's family are devastated by this tragedy and how this young man's future has been snatched away from him.
"We want to bring those responsible to justice and I am appealing to the public to help us."
Anyone with information is asked to contact the Metropolitan Police or Crimestoppers.