Complex sentence: After Harmony leaves, Harry discovers the lake corpse in his bathroom, as well as a planted pistol; after he and Perry dump the corpse, it is found and identified as Veronica Dexter, whom the pair saw at the party.
Split into simpler sentences: After Harmony leaves, Harry discovers the lake corpse in his bathroom, as well as a planted pistol. After he and Perry dump the corpse, it is found and identified as Veronica Dexter, whom the pair saw at the party.