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Single stab wound killed bus girl
A 16-year-old girl killed on a bus on her way to school died from a single stab wound to the chest, police have confirmed.
Christina Edkins was killed shortly after she boarded the double decker in Birmingham during the morning rush hour on Thursday.
Police are investigating whether the "bright and popular" student was targeted in a random attack. A 22-year-old man arrested near the scene is continuing to be questioned by detectives on suspicion of murder.
Post-mortem tests have revealed the teenager died from a single stab wound to the chest following the attack on the number 9 bus.
Detectives are appealing for any passengers who were travelling on the bus to contact them. Sixteen people are believed to have been travelling on the bus when the stabbing occurred, but only half have so far spoken to police.
Detective Superintendent Richard Baker, of West Midlands Police, said: "We know there are a number of passengers who were on the bus yesterday morning when Christina was attacked while she was sitting upstairs. Some of these passengers were sitting downstairs on the bus and they haven't yet spoken to police.
"They may not even have known what happened but may have vital evidence, and it is crucial they contact us as soon as possible on 101. Yesterday's events were truly tragic and it's extremely important everyone comes forward and speaks to us. We will also be able to signpost them to professional agencies who can help them come to terms with being witness to such a tragedy."
The force launched a manhunt for a fellow passenger who fled the scene in the wake of her murder, involving police dogs and firearms officers.
A 22-year-old man was later arrested and detained by police following a short chase, after he was seen acting suspiciously near a Morrisons supermarket. The arrest came after police warned the public to be "vigilant" and heightened the presence of officers across the city and on buses.
The stabbing came a month after Miss Edkins voiced concerns about a fellow passenger on another bus journey. On February 8 she told friends on Twitter: "This man is worrying me on the bus keeps getting up and walking up and down stairs, and sitting in different place".