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.

The white father and son convicted of murder in Ahmaud Arbery’s fatal shooting after they chased the 25-year-old Black man through a Georgia neighborhood have been sentenced to life in prison for committing a federal hate crime. A U.S. District Court judge sentenced Travis McMichael and his father Greg McMichael on Monday in Brunswick. Both were previously sentenced to life without parole in a state court for Arbery’s murder. The McMichaels armed themselves with guns and used a pickup truck to chase Arbery after he ran past their home on Feb. 23, 2020. Neighbor William “Roddie” Bryan, who recorded cellphone video of the slaying, was sentenced to 35 years in prison.

The Sacramento and San Joaquin Rivers are central arms of California's water system. But they are becoming too salty to use for some farmers and cities that rely on them as the state's punishing drought drags on. In dry times, less fresh water flows from the mountains through California's rivers and into an estuary known as the Delta. That means saltier water from the Pacific Ocean is able to push further into the system, which supplies water to millions of people and acres of farmland. The Delta's challenges foreshadow the risks to come for key water supplies from drought and sea level rise made worse by climate change.

Stocks are closing flat on Wall Street as investors prepare for a busy week of updates on inflation. The S&P 500 gave up early gains and closed down 0.1% Monday, while the Dow Jones Industrial Average edged higher and the Nasdaq fell slightly. Small-company stocks outpaced the broader market in a sign of investors' confidence in the economy. Retailers and communications stocks were among the biggest winners. Clean energy companies, including First Solar, rose following Senate approval of Democrats’ big election-year economic package. The government will release its July reports for consumer prices and wholesale prices later this week.