Terry Williamson Jr., 29

At least four homeless people have been killed in L.A. County in the last two weeks. 

Long Beach: Terry Jr. Williamson, 29, a black man, was stabbed to death at 2001Cedar Ave. in Long Beach at 1:30 a.m. Monday, May 5.

According to Sgt. Dina Zapalski of the Long Beach Police Department, Williamson was standing in front of an apartment building when he was stabbed in the upper torso by two Latino men. Williamson was taken to a hospital, where he was pronounced dead at 2 a.m., police said.

Four days before that attack, Juan Ortiz, 31, a Latino man, was shot and killed near the intersection of Pacific Coast Highway and Anaheim Street in Long Beach about 2:20 p.m. Thursday, May 1.  Police said officers responded to a call of a "gunshot victim" at the east bank of the Los Angeles River flood control channel. Ortiz was taken to a hospital, where he was pronounced dead at 3:10 p.m., authorities said.  Anyone with information about the incident can call Dets. David Rios and William K. Matsubara at (562) 570-7244.

Northridge: Harold Loftis, a 69-year-old white man, pictured left, was pronounced dead from blunt-force head trauma at Northridge Hospital Medical Center Thursday, May 1.

According to Det. Mike Fesperman of LAPD's Devonshire Division, Loftis was pacing back and forth in front of a bus stop at Roscoe and Reseda boulevards about 10 p.m. Monday, April 14. Fesperman said a Latino man walking by punched him in the face. Loftis was taken to the hospital. He remained in the intensive-care unit for at least two weeks, until he was declared brain dead.

Fesperman said Loftis was born in Tennessee. He described the suspect as a Latino man in his 20s, 5 feet 8 inches tall and weighing about 200 pounds.

Florence: Troy Green Jr., 23, a black man, was shot and killed at 75th Street and Parmelee Avenue in an unincorporated area of Florence about 9:50 p.m. Saturday, April 26. Green is listed below.