Jim and Jeanne Jasa died weeks after the April 14, 2017, explosion that destroyed their home and damaged nearly three dozen more in the neighborhood.

On Thursday Lincoln Police Chief Jeff Bliemeister characterized the explosion as a murder-suicide. The State Fire Marshal’s Agency ruled out an external gas leak as the cause, and police concluded natural gas provider Black Hills Energy wasn’t responsible.

Relatives have filed claims against the city, Lancaster County and Black Hills, alleging negligence. One of their attorneys, Brian Jorde (JOR’-dee), says he and his client need to review the investigation findings with police before deciding whether to press the claim.

Officials tell the Omaha World-Herald that the boy was upset that the 15-year-old girl had broken off their relationship. Police say he ambushed the girl Tuesday afternoon in a Burke High School hallway when she left class to go to the bathroom. Investigators say she ran after he stabbed her once, but he chased her down and stabbed her several more times before trying to slash his own throat.

A school resource officer responded, taking the knife and administering first aid to both teens, who remain hospitalized in serious condition. Both are expected to survive.

The stabbing led to a school lockdown that lasted about two hours.

The horses belonged to a group of Wisconsin elk hunters who were on their way to Wyoming, with their horses in tow. The group stayed overnight Friday in La Vista, putting the horses up for the night at outdoor outfitter Cabela’s, which has a horse corral.

Officers were called around 2 a.m. Saturday for a report of seven horses on the loose on busy Giles Road and in the lot of a nearby movie theater. La Vista Capt. Bryan Waugh says the officers were able to safely round up all the horses within 30 minutes.

MADISON, Neb. (AP) — A judge says a northeast Nebraska man is still not competent to stand trial on a murder charge.

Madison County District Court records say the judge issued the ruling Friday regarding 49-year-old Rodolfo Castenada-Morejon. He’s pleaded not guilty to first-degree murder and use of a weapon in the slaying of 39-year-old Yosvanis Velazquez Gomez on Aug. 25, 2017, at a Norfolk apartment complex.

In May Castenada-Morejon was ruled incompetent for trial and sent to the state psychiatric hospital in Lincoln for treatment. Another status hearing is scheduled for Jan. 4.

The pickup driver was identified as 23-year-old Emerson Schmaderer, who lived in O’Neill. The semitrailer driver was identified as 65-year-old August Waterman, of O’Neill. Authorities say he wasn’t injured.

The Wardrobe Spa building near 168th and Harrison streets in southwest Omaha collapsed Sunday afternoon. No injuries were reported, and the business was closed Sunday.

Brianna Rogers, who works in the nearby Paw Spa Pet Resort, says the whole building shook, and it sounded like firecrackers going off when the fire started.

Assistant Omaha Fire Chief Kathy Bossman says the building was in flames and collapsed when firefighters arrived around midday.

The owner of the dry cleaning business was outside trimming some of the bushes when the explosion occurred, but he wasn’t hurt. His truck was parked between him and the business.