Complex sentence: He developed a heroin habit after his father, an electrician and part-time film technician at Riverside Studios in Hammersmith, died in 1981, and was subsequently jailed in the early 1980s after receiving a 6 month sentence for undisclosed "drug-related offences".
Split into simpler sentences: He developed an addition to heroin after his father, an electrician and part-time film technician at Riverside Studios in Hammersmith, died in 1981. He was subsequently jailed in the early 1980s after receiving a 6 month sentence for undisclosed "drug-related offences".