Police have charged two city men with unrelated domestic murders.

In the first case, William Pitt, 28, of Millick Street near Grays Avenue in Southwest Philadelphia, is accused of stabbing Tyheef Thomas, 30, who was also known as Kevin Jamerson and lived on Pemberton Street near 58th in West Philadelphia, during an argument Thanksgiving morning in a house on Arlington Street near 54th in Overbrook, said Officer Jillian Russell, a police spokeswoman. Police found Thomas lying on his back in a first-floor apartment hallway; he died at the Hospital of the University of Pennsylvania at 10:36 a.m., Russell said.

Police on Friday told the Daily News that Thomas was stabbed more than 20 times in the chest and arms in a "lovers' quarrel," but Russell said she had no further details this morning.

In the second case, Shawn Lloyd Marshall, 52, of Locust Street near 61st in West Philadelphia,was charged with murder, abuse of a corpse and related offenses in the death of Priscilla Groover, 54, who lived in another home on the same block, Russell said. Marshall is accused of stabbing and beating Groover Saturday, Russell said. Paramedics found her lying facedown, covered with a blanket, on the floor of Marshall's second-floor bedroom and declared her dead at the scene at 9:40 p.m., Russell said.

Marshall is being held without bail pending a Dec. 17 preliminary hearing, according to court records. He is a repeat offender with 32 prior arrests, including for such crimes as robbery, drunk driving, terroristic threats, assault, theft and false imprisonment, records show. Before Groover's slaying, he most recently was charged in an aggravated assault last June, records show.