Melissa Serrano, 24, of Palm Beach County, Florida, was found shot inside a vehicle on May 13, 2018 and died of her injuries on May 19, 2018. Investigators concluded that Osvaldo Gomez-Alberto was the sole person responsible for her murder, but did not disclose a motive or describe his relationship with Serrano.

In October 2018 Gomez-Alberto was himself found dead after being shot execution-style alongside another man, Daniel Del Valle, in a car that crashed into an apartment building in Greenacres. Authorities said Gomez-Alberto’s death effectively closed the investigation into Serrano’s killing because the identified suspect was deceased.

After Gomez-Alberto was killed, Raymond Diaz was arrested and charged with two counts of first-degree murder in the deaths of Gomez-Alberto and Del Valle; prosecutors allege Diaz was in the back seat when both men were shot in the back of the head.