Two people were killed and six others - two of them children - were wounded in a shooting at a high school graduation party, police said Sunday.
Brent Matthew Banks, 37, was arrested after a four-hour standoff with police at a house in Mesa, east of Phoenix, Mesa Police Sgt. Ed Wessing said.
Preliminary information indicated that Banks was an invited guest at the party who got into a physical fight with his ex-wife late Saturday, Wessing said.
He allegedly went to his vehicle, got a gun, returned to the party and opened fire, killing his 38-year-old ex-wife and a 32-year-old man, Wessing said.