You don't need video evidence to be justified in believing something.

Also, it's irrational to reject the Bible or other religious texts as a valid source for evidence.

Paul's conversion is evidence for the resurrection. He persecuted and killed many Christians, but converted after he claimed to meet Jesus on the way to Damascus. He was eventually martyred. What could possibly explain his conversion?

Jesus was buried in a tomb. If he resurrected, we would expect that his body would not remain in the tomb, which is what was discovered on the Sunday morning after the Crucifixion. If Jesus' body was still in the tomb on the Day of Pentecost when Peter preached in Jerusalem, the Jewish leaders could have just grabbed Peter and taken him to the tomb to show that Jesus was in still in the tomb. Instead, the Jewish leaders invented the idea that the disciples stole the body.

The Christian church rests on the resurrection of Jesus. Christianity would never have been able to get started if Jesus had not risen from the dead. Despite persecution the early Christian movement grew rapidly.