Police arrested a Mesa man after they say he assaulted and threatened to kill a man he found in bed with his wife Thursday afternoon.

The incident occurred around 3 p.m. in the 100 block of South Roosevelt Road near West Main Street and South Dobson Road.

After Eugene Quizar Terrazas Jr. came home to find his wife engaged in sexual intercourse with her boyfriend, Terrazas became enraged and grabbed the boyfriend and threw him into a computer, police said.

While the boyfriend was running out of the apartment naked, Terrazas threw a chair at him and a yellow lamp out the window, police said. Terrazas then grabbed his wife by her hair and arms and dragged her out of the apartment.

According to the police report, while the boyfriend was putting his clothes on Terrazas approached him with a knife and told him that if he ever came back he would kill him.

Terrazas returned inside the apartment and put the knife in the dishwasher and threw his wife's clothes out the window. While tossing her clothes out, Terrazas threw a shoe that hit her in the face, police said.

Terrazas and his wife have been married for three years, but his wife has been living at different half-way homes for two years of the marriage, police said.