Warning: SPOILERS for Perry Mason "Chapter Thirteen."Perry Mason season 2 has already taken several turns with its high-profile case of the Gallardo brothers gunning down Brooks McCutcheon, but episode 5 is when the pieces start to fall into place. While Matthew Rhys' hard-boiled defense lawyer now knows his clients were hired to kill the rich sleaze, he still doesn't know why or by who. Furthermore, the Gallardos themselves nursed a reasonable grudge, given that Brooks' push for building a stadium displaced their community and ended in their sister's death.

https://screenrant.com/perry-mason-season-2-justin-kirk-mark-obrien-interview/