Complex sentence: In the past he had beaten Simon merely for being gay and had pushed his pregnant daughter down the stairs, causing her to miscarry, so neither Tiffany or Simon were pleased when Terry showed up looking to reconcile.
Split into simpler sentences: In the past he had beaten Simon merely for being gay and had pushed his pregnant daughter down the stairs, causing her to miscarry. Neither Tiffany nor Simon were pleased when Terry showed up looking to reconcile.