Video report by Patrick Walker

The man who was arrested after a 6-hour standoff with police appeared in court today.

36-year-old Chad Diener faces three counts of aggravated assault with a deadly weapon.

Yuma police were called to the Yuma Home Park on 25th Street and Virginia Drive just after 7 p.m. Monday to investigate an alleged aggravated assault and attempted sexual assault, according to Yuma Police Department Sgt. Leanne Worthen.

According to a press release, Diener approached a 40-year-old woman making sexual comments. When she refused to talk to him, Diener became agitated. The woman's 8-year-old son told Diener to leave them alone. That's when Diener pulled out a box cutter and started waiving it at the young child. The woman then stepped in and was knocked to the ground. During the assault, she received non-life threatening injuries from the blade and from being hit by Diener.

Witnesses chased Diener into apartment B6 of the Yuma Home Park. The complex was evacuated along with several homes on the corner. About an hour later, police tried to talk to Diener in connection with the assault, and for the next five hours, he refused to talk to police.

Shortly after 1 a.m. Tuesday morning, the YPD Special Response Team announced they had a search warrant, and then broke in the front window. Officers entered the home and quickly arrested Diener.

Diener is being held on $400,000 bond. Anyone with information about this case should call Yuma police at (928) 373-4700 or 78-CRIME to remain anonymous.