Authorities have identified the fourth victim in a series of killings of Muslim men in Albuquerque, New Mexico, as the deaths sent ripples of fear through Islamic communities nationwide. Three of the slayings happened in the past week. Now law enforcement officials are seeking help finding a vehicle believed to be connected to the killings in New Mexico’s largest city. The common elements were the victims’ race and religion. Naeem Hussain was killed Friday night, and ambush shootings killed three other Muslim men over the past nine months. Police are trying to determine if the homicides are linked.