passenger or not, the evidence of A.W.2 is relevant. He categorically stated that the said Jagadish collected Rs.100/- each from all the persons and he purchased tickets to travel in the train and all the tickets were kept in the bag; that, after the incident, the bag was lost and therefore the tickets could not be purchased. If the evidence of a solitary eye-witness is found to be true and trustworthy, there is no difficulty in accepting his evidence. Though A.W.2 is friend of the deceased, at the same time, he is found to be a person who was going along with the deceased. That cannot be disputed because he set the criminal law into motion by lodging First Information Report with police. Therefore, from the evidence on record, it is clear that A.W.2 was travelling along with the deceased. He categorically stated that when the deceased had fallen from the train as there was a jolt, he tried to pull chain, but, the train did not stop; that he got down when the train was going slowly and he along with his friends took the deceased to hospital, but he succumbed to the injuries. In such a situation, there was possibility of loosing the bag when they were trying to save the life of the deceased. When there is evidence on record to show that one Jagadish purchased the tickets and kept the same in the bag, examination of the said Jagadish may not be necessary because A.W.2 categorically stated that the said Jagadish purchased tickets for the deceased and others. Nothing has been elicited to discredit the testimony of A.W.2. That is the reason why the trial court placed reliance on the evidence of A.W.2 and held that the deceased was a bona fide passenger.