Two persons were shot to death and two others were fatally stabbed in unrelated incidents in Washington yesterday that began with the first minute of the new year.

Police said that at 12:01 a.m. Robin A. Henderson, 17, of 1445 Maryland Ave. NE, was shot in the right chest inside a back door of 149 47th St. NW. She was pronounced dead shortly afterward at D.C. General Hospital.

Mitchell Wilson, 20, of the 47th Street address, was arrested and charged with homicide, police said.

A Silver Spring man in his 40s who had been shot in the abdominal area was found about 12:20 a.m. at a service station at 1248 Pennsylvania Ave. SE, police said. The man, whose name was withheld until relatives are notified, was pronounced dead later at D.C. General.

No information was available immediately about a motive in either death.

In the third incident, David Best, 24, of 7611 Fountainebleau Dr., New Carrollton, was stabbed about 2:45 a.m. in the 400 block of Park Road NW. He died later at the Medstar unit at the Washington Hospital Center.

Police said they arrested Leroy M. Glover, 26, of 443 Park Rd. NW and charged him with homicide in Best's death.

Police said Best was trying to break up a fight when he was stabbed.

Thomas N. Woodland, 55, of 812 3rd St. NE was fatally stabbed in the back about 8 p.m. yesterday and police arrested Roger Harris, 28, of the same address. Harris, who police said had argued earlier in the day with Woodland about money, was charged with homicide pending a court hearing.