A Pennsylvania man shot and killed his wife after she nagged him about gun safety at their mansion - then murdered his daughter too, police say.  

Roger Hanks, 76, of Chester County was arrested at his home on Thursday evening and charged with first-degree murder.

The charges came after police were called to the 200 block of Wiltshire Drive, where Hanks lived with his 75-year-old wife Judith, at around 6:15pm. Their home was a $746,000, four bed and three bathroom single-family house.

After being found in his garage and taken into custody, Hanks admitted that he had shot his wife Judith and daughter, Emily, 37, ABC reported. 

Hanks, who says he'd been drinking whiskey and beer earlier in the day, confessed that he had gotten into an argument with Judith while cleaning his gun and told her 'if you keep up this thing is going to go off on you.' 

After being found in his garage and taken into custody, Hanks (pictured right) admitted that he had shot his wife Judith (left) and daughter, Emily, 37

When Judith (left) fell to the ground after the gunshot, Emily (right) 'went into a rage.' This caused Hanks to then point the gun at his daughter and it went off again, this time knocking her down

Hanks had allegedly pointed the gun at his wife and told her 'if she did not shut and leave him alone that he was going to 'plug' her,' documents showed

The Hanks' home was a $746,000, four bed and three bathroom single-family house

Hanks confessed that he had gotten into an argument with Judith (pictured) while cleaning his gun and told her 'if you keep up this thing is going to go off on you.'

He then allegedly pointed the gun at his wife and told her 'if she did not shut and leave him alone that he was going to "plug" her,' documents showed. 

The 76-year-old pointed the gun at his wife and it went off, Hanks told police. 

When Judith fell to the ground after the gunshot, Emily 'went into a rage.'

This caused Hanks to then point the gun at his daughter and it went off again, this time knocking her down. 

He aimed the weapon at the chest area of both women, an affidavit revealed.

Hanks went onto to brag to police that he is 'the best of the best' when it comes to shooting firearms and showed off about his frequent participation in competitions for shooting, according to the affidavit. 

The Pennsylvania man also told police that he drank two German beers and Irish whiskey earlier during the day of the tragic incident. 

Police reported that the gun as well as two spent shell casings were found at the scene. 

Emily's Linkedin account reveals that she graduated from the University of Miami and worked as a consulting director for a risk management and governance company in Chicago.

From Judith's social media accounts, it appears that the Hanks were a tight-knit family and that Emily and her mother were particularly close

Judith's most recent Instagram post was a picture of the mother-daughter duo, captioned 'To my “favorite” daughter. Celebrating you on National Daughters Day'

In other posts, Judith gushed about being a 'lucky mother' and shared sweet pictures of her and Emily on trips to New York City and spending time together with their dogs 

From Judith's social media accounts, it appears that the Hanks were a tight-knit family and that Emily and her mother were particularly close. 

Judith's most recent Instagram post was a picture of the mother-daughter duo, captioned 'To my “favorite” daughter. Celebrating you on National Daughters Day.' 

In other posts, Judith gushed about being a 'lucky mother' and shared sweet pictures of her and Emily on trips to New York City and spending time together with their dogs.