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Bereaved: The victim's cousin Jacob Abraham has asked the killer to turn himself in. pic/ap

A second victim of a weekend church shooting died yesterday, leaving one survivor in extremely critical condition.

The estranged wife of the Indian-American gunman Joseph M Pallipurath, who remained at large, also died in the attack.

Dennis John Mallosseril (25), a bystander in the shootings, died of head wounds suffered in Sunday's shooting at St Thomas Syrian Orthodox Knanaya Church.

Pallipurath (27) had come from Sacramento, California, and killed his wife, Reshma James (24). She had been staying with relatives since leaving Sacramento, where they lived.

James's cousin, Silvy Perincheril (47) was also shot in the head and is in "extremely critical" condition.

"Turn yourself in," Mallosseril's cousin Jacob Abraham said outside the church yesterday, after traveling from Houston to be with his grieving family.

"He has to get his punishment, whether it's from the justice system or from God."