Complex sentence: Sandford became eligible for early release in April 2017; the following month, he was released from prison and deported to the United Kingdom, arriving at Heathrow Airport on May 4,2017.
Split into simpler sentences: Sandford became eligible for early release in April 2017. In May 2017, he was released from prison and deported to the United Kingdom, arriving at Heathrow Airport on May 4,2017.