Coleman was convicted last Thursday of strangling his wife and two sons, aged 11 and 9, in 2009. The trial will continues today when the jury will decide whether he should receive the death sentence.

"If there was ever a reason for a death penalty I think it would be for a father who murdered his wife and two defenseless young boys, innocent as they are, in their beds," prosecutor Ed Parkinson said, according to The Associated Press.

The son of a pastor, Coleman had called police from a gym on May 5, 2009, and asked a police officer who had investigated prior threats related to the family to check on them after calls to the house allegedly went unanswered.

When police got to the house later that morning, they found the bodies of his 31-year-old wife and two children all strangled with some type of wire, rope or cord.

Spray-painted across the walls of the house, meanwhile, were obscenities that appeared to have been directed at Sheri Coleman, including the words “punished,”, “wh*re paid”, “u have paid”, and “I saw you leave, [expletive] you, I am always watching.”

Coleman resigned soon after from his position at Joyce Meyer Ministries after being questioned about a violation of the ministry's moral conduct policy. He had served as a bodyguard to Meyer while she travelled.

Pulled into the case, Meyer testified that she was unaware that Coleman was having an affair until she was informed by the police. According to the Belleville News Democrat, the evangelist and speaker said he would have been fired if he was having an extra-marital affair.

Prosecutors argued that Coleman carried out the murder to keep his job and continue his relationship with the other woman, who was his wife's friend.

A wrongful death lawsuit was filed earlier this week in Monroe County in Illinois by the wife's family against Joyce Meyer Ministries "for its failure to recognise that accused family murderer Christopher Coleman was a threat to his wife and two sons", according to a statement.

The lawsuit claims that the organisation should have been aware of Coleman being a threat because he was sending threatening messages to his family from his employer issued computer and cell phone.

"This tragic murder would have been preventable if Joyce Meyer Ministries had responded to the threats and the extramarital affair and warned Sheri appropriately," said Antonio M Romanucci, an attorney.

The recent abolition of the death penalty in Illinois takes effect on July 1. Governor Pat Quinn said he will commute any death sentences to life in prison.