Two further arrests have been made in connection with the death of Neil Canney in Greenock.
The 37-year-old was shot on the doorstep of his home on Nairn Road around 1.15am on February 28.
He was taken by ambulance to the Queen Elizabeth University Hospital in Glasgow where he died a short time later.
Police announced on Thursday that a 38-year-old man had been arrested and charged, and a 27-year-old man arrested, in connection with the death.
The 38-year-old appears at Greenock Sheriff Court on March 9.
Two men appeared at the same court earlier this week accused of murdering Mr Canney.
Jack Benson, 22, from Port Glasgow in Inverclyde, and Dale Russell, 28, from Wishaw in North Lanarkshire, entered no plea at the short petition hearing on Monday and were remanded in custody.
Police said the investigation into the death remains ongoing.