Complex sentence: He was first seen accompanying Carlo Gervasi to a meeting at the Bada Bing and also visited Tony Soprano following the death of Christopher Moltisanti, going to great pains to reassure the others of Gervasi's imminent arrival.
Split into simpler sentences: He was first seen accompanying Carlo Gervasi to a meeting at the Bada Bing. He also visited Tony Soprano following the death of Christopher Moltisanti and went to great pains to reassure the others of Gervasi's imminent arrival.