Santos Jimenez was a Character in DEXTER. He was a notorious drug dealer who operated alongside Lipsey and Welsh under orders from Hector Estrada, who had many connections throughout Miami. This drug organization became the prime target of officer Harry Morgan prior to the series. Santos was also directly responsible for the murder of Laura Moser (Dexter's mother), along with the deaths of three other men, though Hector Estrada is also indirectly responsible, being a murderer by proxy.