Here is the latest Iowa news from The Associated Press at 3:40 a.m. CDT

CRESTON, Iowa (AP) — A memorial service has been held for an Iowa couple and their children who died at a Mexican resort. The service was held Saturday afternoon in the gymnasium at Southwestern Community College in Creston for 41-year-old Kevin Sharp and his wife, 38-year-old Amy Sharp, and their children, 12-year-old Sterling and 7-year-old Adrianna. A Mexican prosecutor says a gas leak in a water heater is suspected of killing them inside their rented condominium in Tulum. Their bodies were found March 23.

ELDON, Iowa (AP) — Renewed attention on actress Roseanne Barr following the return of her TV show has led some to wonder what happened to a massive abandoned house she was building in Iowa with former husband Tom Arnold. The Des Moines Register reports that the half-finished mansion has sat crumbing since construction was halted on the luxury country estate near Eldon amid the couple’s divorce proceedings in 1994. The property manager says the mansion was too expensive to tear down.

DES MOINES, Iowa (AP) — Police in Des Moines are investigating the death of a 71-year-old woman whose body was found in her home on the north side of the city. Police say officers were called Friday afternoon to the home for a report of a death, which police have deemed suspicious. Police have not released the woman’s name or how she died, saying detectives are awaiting results of an autopsy to determine the cause of death.

DES MOINES, Iowa (AP) — A painting found in the dusty attic of Des Moines’ historic Hoyt Sherman Place has turned out to be a big deal. Television station KCCI reports that the painting, “Apollo and Venus” by late 16th Century and early 17th Century Belgium painter Otto van Veen, is believed to be worth millions of dollars. Someone found the 400-year-old painting about two years ago while looking for Civil War flags.