A Florida man convicted of fatally stabbing his cousin’s girlfriend and the couple’s 4-year-old daughter was put to death Thursday evening, the seventh person executed by the state this year.

Richard Knight, 47, was pronounced dead at 6:13 p.m. following a three-drug injection at Florida State Prison near Starke. Knight was convicted of first-degree murder in the June 2002 killings of Odessia Stephens and the couple’s daughter, Hanessia Mullings.

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When the death chamber curtain went up at the scheduled 6 p.m. execution time, Knight was already strapped down with arms extended and an IV line in place.

The execution began immediately afterward. Knight closed his eyes and barely moved as the drugs began flowing. After about 10 minutes, a medic was called in and Knight was declared dead.