Orange County father and twin teens found dead as deputies probe suspected murder-suicide

Deputies in Orange County, Florida, found a father and his 17-year-old twins dead inside their home after a neighbor called 911 for a well-being check, and police are treating the case as a murder-suicide.

Daily Mail reporting states that officers responding Wednesday located Carlo Montiel Infantino and his sister Melanie in the living room and their father, Ivan Montiel Roa, 63, in the master bedroom. Both teens were reported to have multiple stab wounds.

Investigators believe Montiel Roa killed the twins and then took his own life. As of Saturday, officials had not released the exact times of the deaths or said how the father died.

The neighbor who dialed 911 had not seen the family for about a week. That call brought deputies to a quiet house and a scene no parent or first responder wants to face.

Cases like this land hard because the victims are children, the setting is their own home, and the suspected killer is the person meant to protect them. Similar shocks have hit other communities, including a Minnesota man who killed family members at a home daycare before dying by suicide.

Carlo and Melanie attended Cypress Creek High School. Their principal, Frederick Corn, spoke for a shaken campus after the news broke.

Corn told WESH 2:

“I know I speak for our entire Cypress Creek community when I express the extreme grief we feel with this loss.”

He added:

“Our deepest thoughts and prayers are with family and friends during this incredibly painful time.”

Family losses stacked up before the well-being call

The twins’ mother, Montiel Roa’s wife, died in June. Her obituary said the family came from Venezuela.

By late September, a construction business owned by Montiel Roa had dissolved, the Orlando Sentinel reported. He also presented himself as a realtor on his Facebook profile.

None of that supplies a proven motive. Police have not publicly tied a single cause to the killings. What is known is a compressed timeline of personal and financial hits, then three bodies in one house.

Family annihilations leave the same wreckage pattern elsewhere, as when a Michigan father killed his wife and six children before the family home was set on fire.

Democrat state Rep. Rita Harris, who lives nearby, addressed the human cost after speaking with WESH 2.

Harris said:

“It’s devastating as a mom, as a human being. Just any type of tragedy like this, but especially when the victims are so young.”

She also said:

“There’s a lot that can be done… making sure that we kind of wrap our arms around them and that they have what they need to get through what’s going to be, I can imagine the most difficult time of their lives.”

And she pointed to the people who walked into the house first:

“I am also thinking of the first responders and law enforcement officers who carry the weight of what they encounter in service to our community.”

Online posts and unanswered investigative questions

Montiel Roa’s Facebook activity drew notice after the deaths. In a December 2025 post, he wrote lines that appeared to reference a scene from The Dark Knight:

“Introduce a little anarchy, alter the established order and everything turns into chaos. I am an agent of chaos.”

He had also reposted comments about a “new world order.” The posts do not explain the crime. They do show a man broadcasting disorder and upheaval themes in the months before deputies found his children stabbed and his own body in the master bedroom.

Domestic death scenes keep surfacing in different states under different facts, including a Wilmington couple found dead in a suspected murder-suicide after a major anniversary.

Key gaps remain open. The Orange County Sheriff’s Office had been contacted for updates, but as of Saturday the public record still lacked the father’s cause of death, a full evidence summary, autopsy status, and any note confirming whether the murder-suicide label was preliminary belief or a closed finding.

No street address inside Orange County was released in the initial account. Melanie’s full legal name was not fully detailed beyond her first name. The construction firm’s formal business name and exact dissolution paperwork were not laid out beyond the late-September timing.

Those missing pieces matter for public trust. When three people die in one home and two are teenagers with stab wounds, residents deserve clear facts from law enforcement, not rumors and not silence.

What the scene leaves behind

Deputies did their job after a neighbor finally noticed the silence. The school named its grief. A nearby lawmaker spoke about young victims and about officers who absorb what they see.

Still, two 17-year-olds are gone. Their father is gone. A mother already dead in June never saw this ending. A dissolved business and dark online talk sit in the background without answering the core question every parent asks: how does a household reach this point without someone stopping it?

Other searches have ended with bodies and linked deaths, as in the Massachusetts case that closed with a woman found dead days after her officer husband’s death. Each file is different. The constant is the same: once the 911 call comes, the damage is already done.

High-profile found-dead stories draw headlines for a day, whether the name is famous or not, even in cases far from this Orange County home such as when a public figure is found dead in an apartment. The Florida twins were not celebrities. They were students. That should have been enough to keep them alive.

Police say they believe a father turned a living room into a crime scene and then died in the bedroom. Until the sheriff’s office fills in the mechanism, the timeline, and the evidence, the public is left with three deaths, a neighbor’s overdue call, and a community forced to bury children.

Homes are supposed to be the first line of safety. When that line collapses, no speech and no hashtag puts the kids back.