Curtis Truitt, 23, is suspected of stabbing a man after an argument around 11:20 p.m. at 915 Casino Center Drive, Metro said.
He was booked into the Clark County Detention Center on one count of battery with a deadly weapon.
The argument may have concerned the suspect’s sister, Rodriguez said.
He said the victim was taken to the hospital with injuries that were not considered life-threatening.
Contact Rachel Hershkovitz at firstname.lastname@example.org or 702-383-0381. Follow @rzhershkovitz on Twitter.