Complex sentence: Illinois was until 2003 a state like others where the death penalty was restored, over 170 people had been convicted and 12 were executed in the 1990s (5 in 1995).
Split into simpler sentences: Illinois was until 2003 a state like others where the death penalty was restored. Over 170 people had been convicted and 12 were executed in the 1990s (5 in 1995).