STARKE (CBSMiami/AP) — A central Florida man convicted of killing his cousin and his cousin’s wife was put to death on Wednesday.

Robert Hendrix was pronounced dead at 6:21 p.m. at Florida State Prison in Starke,shortly after the lethal injection procedure began. He made no final statement.

He was convicted of the 1990 murders of Elmer and Michelle Scott at their Lake County home.

Prosecutors say the 47-year-old Hendrix killed them because Scott intended to testify against him at his burglary trial.

Hendrix’s attorney said there is no forensic evidence linking his client to the murders and that the witnesses against him were unreliable. He had asked the court to stay or block the execution.

Hendrix is the fourth person executed in Florida this year and the 16th since Gov. Rick Scott took office in 2011.

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